Federal environmental regulation in Alabama
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| Public Policy |
|---|
Federal environmental regulation involves the implementation of federal environmental laws, such as the Clean Air Act, Clean Water Act, and the Endangered Species Act. The U.S. Environmental Protection Agency (EPA) is primarily responsible for enforcing federal air and water quality standards; the U.S. Fish and Wildlife Service is primarily responsible for managing endangered species. State government agencies will often share enforcement responsibilities with the EPA on issues such as air pollution, water pollution, hazardous waste, and other environmental issues.[1]
Legislation and regulation
Federal laws
Clean Air Act
The federal Clean Air Act requires each state to meet federal standards for air pollution. Under the act, the U.S. Environmental Protection Agency oversees national air quality standards aimed at limiting pollutants from chemical plants, steel mills, utilities, and industrial factories. Individual states can enact stricter air standards if they choose, though each state must adhere to the EPA's minimum pollution standards. States implement federal air standards through a state implementation plan (SIP), which must be approved by the EPA.[2]
Clean Water Act
The federal Clean Water Act is meant to address and maintain the physical, chemical, and biological status of the waters of the United States. The U.S. Environmental Protection Agency (EPA) regulates water pollution sources and provides financial assistance to states and municipalities for water quality programs.[3]
According to research done by The New York Times using annual averages from 2004 to 2007, Alabama had 1,588.3 facilities that were regulated annually by the Clean Water Act. An average of 663.3 facilities violated the act annually from 2004 to 2007 in Alabama, and the EPA enforced the act an average of 67.1 times a year in the state. This information, published by the Times in 2009, was the most recent information on the subject as of October 2014.[4]
The table below shows how Alabama compared to neighboring states in The New York Times study, including the number of regulated facilities, facility violations, and the annual average of enforcement actions against regulated facilities between 2004 and 2007.
| The New York Times Clean Water Act study (2004-2007) | ||||
|---|---|---|---|---|
| State | Number of facilities regulated | Facility violations | Annual average enforcement actions | |
| Alabama | 1,588.30 | 663.3 | 67.1 | |
| Mississippi | 1529.8 | 824.1 | 15.8 | |
| Tennessee | 1,274.8 | 489.8 | 8.6 | |
| Georgia | 1008.5 | 67.8 | 32.7 | |
| Source: The New York Times, "Clean Water Act Violations: The Enforcement Record" | ||||
Endangered Species Act
The federal Endangered Species Act (ESA) of 1973 provides for the identification, listing, and protection of both threatened and endangered species and their habitats. According to the U.S. Fish and Wildlife Service, the law was designed to prevent the extinction of vulnerable plant and animal species through the development of recovery plans and the protection of critical habitats. ESA administration and enforcement are the responsibility of the U.S. Fish and Wildlife Service and the National Marine Fisheries Service.[5][6]
Federally listed species in Alabama
There were 130 endangered and threatened animal and plant species believed to or known to occur in Alabama as of July 2015.
The table below lists the 108 endangered and threatened animal species believed to or known to occur in the state. When an animal species has the word "Entire" after its name, that species will be found all throughout the state.[7]
| Endangered animal species in Alabama | |||||||
|---|---|---|---|---|---|---|---|
| Status | Species | ||||||
| Endangered | Acornshell, southern (Epioblasma othcaloogensis) | ||||||
| Threatened | Bankclimber, purple (mussel) (Elliptoideus sloatianus) | ||||||
| Threatened | Bat, Northern long-eared (Myotis septentrionalis) | ||||||
| Endangered | Bat, gray Entire (Myotis grisescens) | ||||||
| Endangered | Bat, Indiana Entire (Myotis sodalis) | ||||||
| Endangered | Bean, Choctaw (Villosa choctawensis) | ||||||
| Endangered | Bean, Cumberland (pearlymussel) Entire Range; Except where listed as Experimental Populations (Villosa trabalis) | ||||||
| Endangered | Blossom, turgid (pearlymussel) Entire Range; Except where listed as Experimental Populations (Epioblasma turgidula) | ||||||
| Endangered | Blossom, yellow (pearlymussel) Entire Range; Except where listed as Experimental Populations (Epioblasma florentina florentina) | ||||||
| Endangered | Butterfly, Mitchell's satyr Entire (Neonympha mitchellii mitchellii) | ||||||
| Endangered | Campeloma, slender Entire (Campeloma decampi) | ||||||
| Endangered | Cavefish, Alabama Entire (Speoplatyrhinus poulsoni) | ||||||
| Threatened | Chub, spotfin Entire (Erimonax monachus) | ||||||
| Endangered | Clubshell, ovate (Pleurobema perovatum) | ||||||
| Endangered | Clubshell, southern (Pleurobema decisum) | ||||||
| Endangered | Combshell, Cumberlandian Entire Range; Except where listed as Experimental Populations (Epioblasma brevidens) | ||||||
| Endangered | Combshell, southern Entire (Epioblasma penita) | ||||||
| Endangered | Combshell, upland (Epioblasma metastriata) | ||||||
| Endangered | Darter, boulder Entire (Etheostoma wapiti) | ||||||
| Threatened | Darter, goldline Entire (Percina aurolineata) | ||||||
| Endangered | Darter, rush Entire (Etheostoma phytophilum) | ||||||
| Threatened | Darter, slackwater Entire (Etheostoma boschungi) | ||||||
| Threatened | Darter, snail Entire (Percina tanasi) | ||||||
| Endangered | Darter, vermilion Entire (Etheostoma chermocki) | ||||||
| Endangered | Darter, watercress Entire (Etheostoma nuchale) | ||||||
| Endangered | Ebonyshell, round (Fusconaia rotulata) | ||||||
| Threatened | Elimia, lacy (snail) Entire (Elimia crenatella) | ||||||
| Endangered | Fanshell (Cyprogenia stegaria) | ||||||
| Threatened | Heelsplitter, Alabama (=inflated) Entire (Potamilus inflatus) | ||||||
| Endangered | Hornsnail, rough Entire (Pleurocera foremani) | ||||||
| Endangered | Kidneyshell, southern (Ptychobranchus jonesi) | ||||||
| Endangered | Kidneyshell, triangular (Ptychobranchus greenii) | ||||||
| Threatened | Knot, red (Calidris canutus rufa) | ||||||
| Endangered | Lampmussel, Alabama Entire Range; Except where listed as Experimental Populations (Lampsilis virescens) | ||||||
| Endangered | Lilliput, pale (pearlymussel) Entire (Toxolasma cylindrellus) | ||||||
| Endangered | Lioplax, cylindrical (snail) Entire (Lioplax cyclostomaformis) | ||||||
| Endangered | Manatee, West Indian Entire (Trichechus manatus) | ||||||
| Threatened | Moccasinshell, Alabama (Medionidus acutissimus) | ||||||
| Endangered | Moccasinshell, Coosa (Medionidus parvulus) | ||||||
| Endangered | Moccasinshell, Gulf (Medionidus penicillatus) | ||||||
| Endangered | Monkeyface, Cumberland (pearlymussel) Entire Range; Except where listed as Experimental Populations (Quadrula intermedia) | ||||||
| Endangered | Mouse, Alabama beach Entire (Peromyscus polionotus ammobates) | ||||||
| Endangered | Mouse, Perdido Key beach Entire (Peromyscus polionotus trissyllepsis) | ||||||
| Threatened | Mucket, orangenacre (Lampsilis perovalis) | ||||||
| Endangered | Mucket, pink (pearlymussel) Entire (Lampsilis abrupta) | ||||||
| Endangered | Mussel, oyster Entire Range; Except where listed as Experimental Populations (Epioblasma capsaeformis) | ||||||
| Endangered | Mussel, sheepnose (Plethobasus cyphyus) | ||||||
| Endangered | Mussel, snuffbox (Epioblasma triquetra) | ||||||
| Endangered | Pearlshell, Alabama (Margaritifera marrianae) | ||||||
| Endangered | Pearlymussel, cracking Entire Range; Except where listed as Experimental Populations (Hemistena lata) | ||||||
| Endangered | Pearlymussel, dromedary Entire Range; Except where listed as Experimental Populations (Dromus dromas) | ||||||
| Endangered | Pearlymussel, littlewing Entire (Pegias fabula) | ||||||
| Endangered | Pearlymussel, slabside (Pleuronaia dolabelloides) | ||||||
| Endangered | Pebblesnail, flat Entire (Lepyrium showalteri) | ||||||
| Endangered | Pigtoe, dark (Pleurobema furvum) | ||||||
| Endangered | Pigtoe, finerayed Entire Range; Except where listed as Experimental Populations (Fusconaia cuneolus) | ||||||
| Endangered | Pigtoe, flat Entire (Pleurobema marshalli) | ||||||
| Threatened | Pigtoe, fuzzy (Pleurobema strodeanum) | ||||||
| Endangered | Pigtoe, Georgia (Pleurobema hanleyianum) | ||||||
| Endangered | Pigtoe, heavy Entire (Pleurobema taitianum) | ||||||
| Threatened | Pigtoe, narrow (Fusconaia escambia) | ||||||
| Endangered | Pigtoe, oval (Pleurobema pyriforme) | ||||||
| Endangered | Pigtoe, rough (Pleurobema plenum) | ||||||
| Endangered | Pigtoe, shiny Entire Range; Except where listed as Experimental Populations (Fusconaia cor) | ||||||
| Endangered | Pigtoe, southern (Pleurobema georgianum) | ||||||
| Threatened | Pigtoe, tapered (Fusconaia burkei) | ||||||
| Endangered | Pimpleback, orangefoot (pearlymussel) (Plethobasus cooperianus) | ||||||
| Threatened | Plover, piping except Great Lakes watershed (Charadrius melodus) | ||||||
| Threatened | Pocketbook, finelined (Lampsilis altilis) | ||||||
| Endangered | Pocketbook, shinyrayed (Lampsilis subangulata) | ||||||
| Endangered | Purple Cat's paw (=Purple Cat's paw pearlymussel) Entire Range; Except where listed as Experimental Populations (Epioblasma obliquata obliquata) | ||||||
| Threatened | Rabbitsfoot Rabbitsfoot (Quadrula cylindrica cylindrica) | ||||||
| Endangered | Ring pink (mussel) (Obovaria retusa) | ||||||
| Endangered | Riversnail, Anthony's Entire Range; Except where listed as Experimental Populations (Athearnia anthonyi) | ||||||
| Endangered | Rocksnail, interrupted (=Georgia) (Leptoxis foremani) | ||||||
| Threatened | Rocksnail, painted Entire (Leptoxis taeniata) | ||||||
| Endangered | Rocksnail, plicate Entire (Leptoxis plicata) | ||||||
| Threatened | Rocksnail, round Entire (Leptoxis ampla) | ||||||
| Threatened | Salamander, Red Hills Entire (Phaeognathus hubrichti) | ||||||
| Threatened | sandshell, Southern (Hamiota australis) | ||||||
| Endangered | Sawfish, smalltooth United States DPS (Pristis pectinata) | ||||||
| Threatened | Sculpin, pygmy Entire (Cottus paulus (=pygmaeus)) | ||||||
| Threatened | Sea turtle, green Except where endangered (Chelonia mydas) | ||||||
| Endangered | Sea turtle, hawksbill Entire (Eretmochelys imbricata) | ||||||
| Endangered | Sea turtle, Kemp's ridley Entire (Lepidochelys kempii) | ||||||
| Endangered | Sea turtle, leatherback Entire (Dermochelys coriacea) | ||||||
| Threatened | Sea turtle, loggerhead Northwest Atlantic Ocean DPS (Caretta caretta) | ||||||
| Threatened | Shiner, blue Entire (Cyprinella caerulea) | ||||||
| Endangered | Shiner, Cahaba Entire (Notropis cahabae) | ||||||
| Endangered | Shiner, palezone Entire (Notropis albizonatus) | ||||||
| Endangered | Shrimp, Alabama cave Entire (Palaemonias alabamae) | ||||||
| Threatened | Slabshell, Chipola (Elliptio chipolaensis) | ||||||
| Endangered | Snail, armored Entire (Pyrgulopsis (=Marstonia) pachyta) | ||||||
| Threatened | Snail, tulotoma Entire (Tulotoma magnifica) | ||||||
| Threatened | Snake, eastern indigo Entire (Drymarchon corais couperi) | ||||||
| Endangered | Spectaclecase (mussel) (Cumberlandia monodonta) | ||||||
| Endangered | Stirrupshell Entire (Quadrula stapes) | ||||||
| Threatened | Stork, wood AL, FL, GA, MS, NC, SC (Mycteria americana) | ||||||
| Threatened | Sturgeon (Gulf subspecies), Atlantic Entire (Acipenser oxyrinchus (=oxyrhynchus) desotoi) | ||||||
| Endangered | Sturgeon, Alabama (Scaphirhynchus suttkusi) | ||||||
| Threatened | Sunfish, spring pygmy (Elassoma alabamae) | ||||||
| Threatened | Tortoise, gopher W of Mobile/Tombigbee Rs. (Gopherus polyphemus) | ||||||
| Endangered | Turtle, Alabama red-belly Entire (Pseudemys alabamensis) | ||||||
| Threatened | Turtle, flattened musk species range clarified (Sternotherus depressus) | ||||||
| Endangered | Wartyback, white (pearlymussel) (Plethobasus cicatricosus) | ||||||
| Endangered | Whale, finback Entire (Balaenoptera physalus) | ||||||
| Endangered | Whale, humpback Entire (Megaptera novaeangliae) | ||||||
| Endangered | Woodpecker, red-cockaded Entire (Picoides borealis) | ||||||
| Source: U.S. Fish and Wildlife Service, "Endangered and threatened species in Alabama" | |||||||
The table below lists the 22 endangered and threatened plant species believed to or known to occur in the state.[8]
| Endangered plant species in Alabama | |||||||
|---|---|---|---|---|---|---|---|
| Status | Species | ||||||
| Threatened | Amphianthus, little (Amphianthus pusillus) | ||||||
| Threatened | Bladderpod, lyrate (Lesquerella lyrata) | ||||||
| Threatened | Button, Mohr's Barbara (Marshallia mohrii) | ||||||
| Endangered | Chaffseed, American (Schwalbea americana) | ||||||
| Threatened | Fern, Alabama streak-sorus (Thelypteris pilosa var. alabamensis) | ||||||
| Threatened | Fern, American hart's-tongue (Asplenium scolopendrium var. americanum) | ||||||
| Endangered | Gladecress, Fleshy-fruit (Leavenworthia crassa) | ||||||
| Endangered | Grass, Tennessee yellow-eyed (Xyris tennesseensis) | ||||||
| Endangered | Harperella (Ptilimnium nodosum) | ||||||
| Endangered | Leather flower, Alabama (Clematis socialis) | ||||||
| Endangered | Leather flower, Morefield's (Clematis morefieldii) | ||||||
| Endangered | Pinkroot, gentian (Spigelia gentianoides) | ||||||
| Endangered | Pitcher-plant, Alabama canebrake (Sarracenia rubra ssp. alabamensis) | ||||||
| Endangered | Pitcher-plant, green (Sarracenia oreophila) | ||||||
| Endangered | Pondberry (Lindera melissifolia) | ||||||
| Threatened | Potato-bean, Price's (Apios priceana) | ||||||
| Endangered | Prairie-clover, leafy (Dalea foliosa) | ||||||
| Endangered | Quillwort, Louisiana (Isoetes louisianensis) | ||||||
| Threatened | Rockcress, Georgia (Arabis georgiana) | ||||||
| Endangered | Sunflower, whorled (Helianthus verticillatus) | ||||||
| Endangered | Trillium, relict (Trillium reliquum) | ||||||
| Threatened | Water-plantain, Kral's (Sagittaria secundifolia) | ||||||
| Source: U.S. Fish and Wildlife Service, "Endangered and threatened species in Alabama" | |||||||
Enforcement
- See also: Enforcement at the EPA
Alabama is part of the EPA's Region 4, which includes Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee.
The EPA enforces federal standards on air, water and hazardous chemicals. The EPA takes administrative or legal action against alleged violators, often with the goal of collecting penalties/fines and demanding compliance with laws such as the Clean Air Act and Clean Water Act. In 2013, the EPA estimated that 32.5 million pounds of pollution, which includes air and water pollutants and hazardous chemicals, were "reduced, treated or eliminated," and 16.6 million cubic yards of soil and water were cleaned in Region 4. Additionally, 420 enforcement cases were initiated, and 416 enforcement cases were concluded in fiscal year 2013. In fiscal year 2013, the EPA collected $1.1 billion in criminal fines and civil penalties from the private sector nationwide, primarily due to the $1 billion settlement from the Deepwater Horizon oil spill along the Gulf Coast in 2010. In fiscal year 2012, the EPA collected $252 million in criminal fines and civil penalties from the private sector nationwide. The EPA only publishes nationwide data and does not provide state or region-specific information on the amount of fines and penalties it collects during a fiscal year.[9][10][11][12]
One example of the EPA's enforcement action in Alabama occurred in 2006. The EPA fined Essex Electric Inc., $18,850 for violating the EPA's standards on hazardous chemicals. Specifically, the company failed to submit a hazardous chemical inventory report to the EPA that year.[13]
Mercury and air toxics standards
- See also: Mercury and air toxics standards
The EPA enforces mercury and air toxics standards (MATS), which are national limits on mercury, chromium, nickel, arsenic and acidic gases from coal- and oil-fired power plants. Power plants are required to have certain technologies to limit these pollutants. In December 2011, the EPA issued greater restrictions on the amount of mercury and other toxic pollutants produced by power plants. As of 2014, approximately 580 power plants, including 1,400 oil- and coal-fired electric-generating units, fell under the federal rule. According to the EPA, power plants account for 50 percent of mercury emissions, 75 percent of acidic gases and around 20 to 60 percent of toxic metal emissions in the United States. All coal- and oil-fired power plants with a capacity of 25 megawatts or greater are subject to the standards. The EPA claims that the standards will "prevent up to 360 premature deaths in Alabama while creating up to $3 billion in health benefits in 2016."[14][15][16]
Several studies have examined the economic and environmental impact of the MATS standards nationwide. The EPA released its own study of the standards' economic, environmental and health effects while other studies, published by private sector organizations, rebut or respond to the EPA's policy analysis. Below is a summary of the studies on MATS and their effects as of November 2014.
EPA study
In 2014, the EPA reported that its MATS rule would prevent roughly 11,000 premature deaths and 130,000 asthma attacks nationwide. The agency also anticipated between $37 billion and $90 billion in "improved air quality benefits" annually. For the rule's cost, the EPA estimated that annual compliance fees for coal- and oil-fired power plants would reach $9.6 billion.[17]
NERA study
A 2012 study published by NERA Economic Consulting, a global consultancy group, reported that annual compliance costs in the electricity sector would total $10 billion in 2015 and nearly $100 billion cumulatively up through 2034. The same study found that the net impact of the MATS rule in 2015 would be the income equivalent of 180,000 fewer jobs. This net impact takes into account the job gains associated with the building and refitting of power plants with new technology.[18]
Superfund sites
The EPA established the Superfund program as part of the Comprehensive Environmental Response, Compensation and Liability Act of 1980. The law was passed as a response to toxic waste dumps found during the 1970s. The Superfund program focuses on uncontrolled or abandoned hazardous waste sites nationwide. The EPA inspects waste sites and establishes cleanup plans for them. The federal government can compel the private entities responsible for a waste site to clean the site or face penalties. If the federal government cleans a waste site, it can force the responsible party to reimburse the EPA or other federal agencies for the cleanup's cost. Superfund sites include oil refineries, smelting facilities, mines and other industrial areas. As of October 2014, there were 1,322 Superfund sites nationwide. A total of 186 Superfund sites reside in Region 4, with an average of 23.25 sites per state. There were 14 Superfund sites in Alabama as of October 2014.[19][20]
Economic impact
| EPA studies |
|---|
| The Environmental Protection Agency publishes studies to evaluate the impact and benefits of its policies. Other studies may dispute the agency's findings or state the costs of its policies. |
According to the U.S. Government Accountability Office (GAO), an independent federal agency, the Superfund program received an average of almost $1.2 billion annually in appropriated funds between the years 1981 and 2009, adjusted for inflation. The GAO estimated that the trust fund of the Superfund program decreased from $5 billion in 1997 to $137 million in 2009. As part of the American Recovery and Reinvestment Act of 2009, also known as the stimulus bill, the Superfund program received an additional $600 million in federal funds.[21]
In March 2011, the EPA claimed that the agency's Superfund program produced economic benefits nationwide. Because Superfund sites are added and removed from a prioritized list on a regular basis, the total number of Superfund sites since the program's inception in 1980 is unknown. Based on a selective study of 373 Superfund sites cleaned up since the program's inception, the EPA estimated that these benefits include the creation of 2,240 private businesses, $32.6 billion in annual sales from new businesses, 70,144 jobs and $4.9 billion in annual employment income.[22]
Other studies were published detailing the costs associated with the Superfund program. According to the Property and Environment Research Center, a free market-oriented policy group based in Montana, the EPA spent over $35 billion on the Superfund program between 1980 and 2005.[23][24]
Environmental impact
In March 2011, the EPA claimed that the Superfund program resulted in healthier environments surrounding former waste sites. An agency study analyzed the program's health and ecological benefits and focused on former landfills, mining areas, and abandoned dumps that were cleaned up and renovated. As of January 2009, out of the approximately 500 former Superfund sites used for the study, roughly 10 percent became recreational or commercial sites. Other former Superfund sites in the study are now used as wetlands, meadows, streams, scenic trails, parks, and habitats for plants and animals.[25]
Carbon emissions
- See also: Climate change, Greenhouse gas and Greenhouse gas emissions by state
In 2011, Alabama had the 14th highest carbon emissions in the United States, according to the U.S. Energy Information Administration. Carbon emissions peaked in 2007, when Alabama emitted 146 million tons of CO2. Emissions declined significantly between 2008 and 2009 before rising in 2010. The electric power sector emitted more than half of all carbon emissions in 2011, and the transportation sector was responsible for nearly a quarter of all emissions. The industrial, residential and commercial sectors accounted for the remainder.[26]
Carbon dioxide emissions in Alabama (in million metric tons). Data was compiled by the U.S. Energy Information Administration. |
Pollution from energy use
Pollution from energy use includes three common air pollutants: carbon monoxide, nitrogen dioxide and ozone. These and other pollutants are regulated by the U.S. Environmental Protection Agency (EPA) through the National Ambient Air Quality Standards, which are federal standards limiting pollutants that can harm human health in significant concentrations. Carbon dioxide, a greenhouse gas, is also regulated by the EPA, but it is excluded here since it is not one of the pollutants originally regulated under the Clean Air Act for its harm to human health.
Industries and motor vehicles emit carbon monoxide directly when they use energy. Nitrogen dioxide forms from the emissions of automobiles, power plants and other sources. Ground level ozone (also known as tropospheric ozone) is not emitted but is the product of chemical reactions between nitrogen dioxide and volatile organic chemicals. The EPA tracks these and other pollutants from monitoring sites across the United States. The data below shows nationwide and regional trends for carbon monoxide, nitrogen dioxide and ozone between 2000 and 2014. States with consistent climates and weather patterns were grouped together by the EPA to make up each region.[27][28]
Carbon monoxide (CO)
Carbon monoxide (CO) is a colorless, odorless gas produced from combustion processes, e.g., when gasoline reacts rapidly with oxygen and releases exhaust; the majority of national CO emissions come from mobile sources like automobiles. CO can reduce the oxygen-carrying capacity of the blood and at very high levels can cause death. CO concentrations are measured in parts per million (ppm). Since 1994, federal law prohibits CO concentrations from exceeding 9 ppm during an eight-hour period more than once per year.[29][30]
The chart below compares the annual average concentration of carbon monoxide in the Northeastern and Southeastern regions of the United States between 2000 and 2014. States with consistent climates and weather patterns are grouped together by the U.S. Environmental Protection Agency (EPA), which collects these data, to make up each region. Each line represents the annual average of all the data collected from pollution monitoring sites in each region. In the Northeast, there were 32 monitoring sites throughout 11 states, compared to 22 monitoring sites throughout six states in the Southeast. In 2000, the average concentration of carbon monoxide was 2.7 ppm in the Northeast, compared to 3.91 ppm in the Southeast. In 2014, the average concentration of carbon monoxide was 1.2 ppm in the Northeast, a decrease of 61.1 percent from 2000, compared to 1.52 ppm in the Southeast, a decrease of 56.7 percent from 2000.[31]
Nitrogen dioxide (NO2)
Nitrogen dioxide (NO2) is one of a group of gasses known as nitrogen oxides (NOx). The U.S. Environmental Protection Agency (EPA) measures NO2 as a representative for the larger group of nitrogen oxides. NO2 forms from the emissions of cars, buses, trucks, power plants, and off-road equipment. It helps form ground-level ozone and fine particle pollution, and has been linked to respiratory problems. Since 1971, federal law prohibits NO2 concentrations from exceeding a daily one-hour average of 100 parts per billion (ppb) and an annual average of 53 parts per billion (ppb).[30][32][30]
The chart below compares the annual one-hour average concentration of nitrogen dioxide (NO2) in the Northeastern and Southeastern regions of the United States between 2000 and 2014. In the Northeast, there were 32 monitoring sites throughout 11 states, compared to 14 monitoring sites throughout six states in the Southeast. In 2000, the one-hour daily average concentration of NO2 was 61.31 ppb in the Northeast, compared to 57 ppb in the Southeast. In 2014, the one-hour daily average concentration of NO2 was 43.98 ppb in the Northeast, a decrease of 28.2 percent since 2000, compared to 38.36 ppb in the Southeast, a decrease of 32.6 percent since 2000.[33]
Ground-level ozone
Ground-level ozone is created by chemical reactions between nitrogen oxides (NOx) and volatile organic compounds (VOCs) in sunlight. Major sources of NOx and VOCs include industrial facilities, electric utilities, automobiles, gasoline vapors, and chemical solvents. Ground-level ozone can produce health problems for children, the elderly, and asthmatics. Since 2008, federal law has prohibited ozone concentrations from exceeding a daily eight-hour average of 75 parts per billion (ppb). Beginning in 2025, federal law will prohibit ground-level ozone concentrations from exceeding a daily eight-hour average of 70 ppb.[30][34]
The chart below compares the daily eight-hour average concentration of ground-level ozone in the Northeastern and Southeastern regions of the United States between 2000 and 2014. In the chart below, ozone concentrations are measured in parts per million (ppm), which can be converted to parts per billion (ppb). In the Northeast, there were 133 monitoring sites throughout 11 states, compared to 153 monitoring sites throughout six states in the Southeast. In 2000, the daily eight-hour average concentration of ozone was 0.083 ppm, or 83 ppb in the Northeast, compared to 0.082 ppm, or 82 ppb in the Southeast. In 2014, the daily eight-hour average concentration of ozone was 0.066 ppm, or 66 ppb in the Northeast, a decrease of 19.5 percent since 2000, compared to 0.063 ppm, or 63 ppb in the Southeast, a decrease of 23.9 percent since 2000.[35]
Environmental policy in the 50 states
Click on a state below to read more about that state's energy policy.
See also
Footnotes
- ↑ U.S. Environmental Protection Agency, "Laws & Regulations," accessed November 25, 2015
- ↑ U.S. Environmental Protection Agency, "Understanding the Clean Air Act," accessed September 12, 2014
- ↑ U.S. Environmental Protection Agency, "Clean Water Act (CWA) Overview," accessed September 19, 2014
- ↑ The New York Times, "Clean Water Act Violations: The Enforcement Record," September 13, 2009
- ↑ U.S. Fish and Wildlife Service, "Improving ESA Implementation," accessed May 15, 2015
- ↑ U.S. Fish and Wildlife Service, "ESA Overview," accessed October 1, 2014
- ↑ U.S. Fish and Wildlife Service, "Endangered and threatened species in Alabama," accessed July 6, 2015
- ↑ U.S. Fish and Wildlife Service, "Endangered and threatened species in Alabama," accessed July 6, 2015
- ↑ U.S. Environmental Protection Agency, "Annual EPA Enforcement Results Highlight Focus on Major Environmental Violations," February 7, 2014
- ↑ U.S. Environmental Protection Agency, "Accomplishments by EPA Region," May 12, 2014
- ↑ U.S. Environmental Protection Agency, "Enforcement Annual Results for Fiscal Year 2012," accessed October 1, 2014
- ↑ U.S. Environmental Protection Agency, "EPA Enforcement in 2012 Protects Communities From Harmful Pollution," December 17, 2012
- ↑ U.S. Environmental Protection Agency, "Enforcement Case Report (Essex Electric Inc., Alabama)," accessed November 10, 2014
- ↑ U.S. Environmental Protection Agency, "Basic Information on Mercury and Air Toxics Standards," accessed January 5, 2015
- ↑ U.S. Environmental Protection Agency, "Cleaner Power Plants," accessed January 5, 2015
- ↑ U.S. Environmental Protection Agency, "Mercury and Air Toxics Standards in Alabama," accessed September 9, 2014
- ↑ U.S. Environmental Protection Agency, "Benefits and Costs of Cleaning Up Toxic Air Pollution from Power Plants," accessed October 9, 2014
- ↑ NERA Economic Consulting, "An Economic Impact Analysis of EPA's Mercury and Air Toxics Standards Rule," March 1, 2012
- ↑ U.S. Environmental Protection Agency, "What is Superfund?" accessed September 9, 2014
- ↑ U.S. Environmental Protection Agency, "National Priorities List (NPL) of Superfund Sites," accessed October 7, 2014
- ↑ U.S. Government Accountability Office, "EPA's Estimated Costs to Remediate Existing Sites Exceed Current Funding Levels, and More Sites Are Expected to Be Added to the National Priorities List," accessed October 7, 2014
- ↑ U.S. Environmental Protection Agency, "Estimate of National Economic Impacts of Superfund Sites," accessed September 12, 2014
- ↑ Property and Environment Research Center, "Superfund Follies, Part II," accessed October 7, 2014
- ↑ Property and Environment Research Center, "Superfund: The Shortcut That Failed (1996)," accessed October 7, 2014
- ↑ U.S. Environmental Protection Agency, "Beneficial Effects of the Superfund Program," accessed September 12, 2014
- ↑ U.S. Energy Information Administration, "State Profiles and Energy Estimates," accessed October 13, 2014
- ↑ U.S. Environmental Protection Agency, "Air Trends," accessed October 30, 2015
- ↑ U.S. Environmental Protection Agency, "Basic Information - Ozone," accessed January 1, 2016
- ↑ U.S. Environmental Protection Agency, "Carbon Monoxide," accessed October 26, 2015
- ↑ 30.0 30.1 30.2 30.3 U.S. Environmental Protection Agency, "National Ambient Air Quality Standards (NAAQS)," accessed October 26, 2015
- ↑ U.S. Environmental Protection Agency, "Regional Trends in CO Levels," accessed October 23, 2015
- ↑ U.S. Environmental Protection Agency, "Nitrogen dioxide," accessed October 26, 2015
- ↑ U.S. Environmental Protection Agency, "Regional Trends in Nitrogen Dioxide Levels," accessed October 23, 2015
- ↑ U.S. Environmental Protection Agency, "Ground Level Ozone," accessed October 26, 2015
- ↑ U.S. Environmental Protection Agency, "Regional Trends in Ozone Levels ," accessed October 26, 2015
