Showing posts with label NITROGEN OXIDE EMISSIONS. Show all posts
Showing posts with label NITROGEN OXIDE EMISSIONS. Show all posts

Saturday, March 22, 2014

ACID MANUFACTURER SETTLES NITROGEN OXIDES EMISSIONS CASE

FROM:  U.S. JUSTICE DEPARTMENT 
Wednesday, March 19, 2014
North America’s Largest Acid Manufacturer and Its Subsidiaries Agree to Slash Emissions and Reduce Air Pollution

LSB Industries Inc. (LSB), the largest merchant manufacturer of concentrated nitric acid in North America, and four of its subsidiaries have agreed to reduce harmful emissions of nitrogen oxides (NOx) by meeting emission limits that are among the lowest for the industry in the nation at plants in Alabama, Arkansas, Oklahoma and Texas, the U.S. Environmental Protection Agency (EPA) and Department of Justice announced today.

EPA estimates that the measures required by today’s settlement will reduce NOx emissions by more than 800 tons per year, directly benefitting surrounding communities, which include low-income and minority populations living near the Arkansas and Texas plants.  The companies estimate that it will cost between $6.3 and $11.7 million to implement the measures required by the settlement.

“With today’s settlement, LSB and its subsidiaries are further improving the nitric acid manufacturing process and reducing harmful air pollution across four states,” said Robert G. Dreher, Acting Assistant Attorney General for the Justice Department’s Environment and Natural Resources Division.  “In response to the Clean Air Act and state law claims, the companies have taken a constructive and cooperative approach by agreeing to implement global operational changes and mitigate past emissions.  These actions raise the bar for compliance in this industry sector.”

“This case is about cleaner air for people living in communities near manufacturing plants,” said Cynthia Giles, Assistant Administrator of EPA’s Office of Enforcement and Compliance Assurance.  “LSB Industries has committed to dramatic cuts in air pollution and ensuring they are in compliance with the law.  We expect others in the industry to recognize the imperative to adopt reforms and reduce pollution in communities where they operate.”

LSB and its four nitric acid producing subsidiaries will also pay a total penalty of $725,000 to resolve alleged violations of the Clean Air Act and applicable Oklahoma state law.  In addition to paying the penalty, the companies must continuously monitor emissions and make any necessary operational improvements such as installing new pollution controls or upgrading current controls to meet the new NOx limits.

The settlement applies to the 10 nitric acid manufacturing plants owned or operated by the following Oklahoma City-based LSB subsidiaries: El Dorado Chemical Co., in El Dorado, Ark. (four plants); Cherokee Nitrogen Co. in Cherokee, Ala. (two plants); El Dorado Nitrogen Co. in Pryor, Okla. (three plants); and El Dorado Nitrogen Co. in Baytown, Texas (one plant).  The complaint, filed concurrently with the settlement, alleges that the Cherokee, El Dorado and Pryor subsidiaries constructed or made modifications to their plants that resulted in increased emissions of NOx without first obtaining pre-construction permits and installing pollution controls.  The complaint does not allege any violations regarding the Texas facility.

Today’s action is part of EPA’s national enforcement initiative to control harmful air pollution from the largest sources of emissions, including acid manufacturing facilities.  High concentrations of NOx in the air can irritate the lungs and lower resistance to respiratory infections such as influenza.  Continued or frequent exposure may cause increased incidence of acute respiratory illness in children.  Further, airborne NOx can significantly contribute to acid rain and lead to the formation of smog.

The companies have also agreed to spend $150,000 to remediate and reforest ten acres of land with acidified soils located near El Dorado, Ark.  NOx emissions, such as those from nitric acid plants, can contribute to soil acidification.  The project will help to minimize erosion, reduce stormwater runoff, improve habitat for wildlife and capture carbon dioxide, a greenhouse gas.

The states of Oklahoma and Alabama are co-plaintiffs in today’s settlement and will receive a portion of the total penalty as follows: $206,250 will be paid to the Oklahoma Department of Environmental Quality and $156,250 will be paid to the Alabama Department of Environmental Management.

LSB, headquartered in Oklahoma City, Okla., is a major producer of nitrogen-based fertilizers, including anhydrous ammonia, urea and ammonium nitrate.  The company owns and operates the largest fleet of concentrated nitric acid rail cars in the United States.  LSB and its subsidiaries produce nitric acid for use in products that include herbicides, metal treatment, explosives and pharmaceuticals.

Sunday, April 21, 2013

CEMEX, INC., AGREES TO REDUCE HARMFUL AIR EMISSIONS AT COLORADO PLANT

FROM: U.S. ENVIRONMENTAL PROTECTION AGENCY

Cement Manufacturer Agrees to Reduce Harmful Air Emissions at Colorado Plant

WASHINGTON
— The U.S. Environmental Protection Agency (EPA) and the U.S. Department of Justice (DOJ) announced today that CEMEX, Inc., the owner and operator of a Portland cement manufacturing facility in Lyons, Colo., has agreed to operate advanced pollution controls on its kiln and pay a $1 million civil penalty to resolve alleged violations of the Clean Air Act (CAA).

"Today’s settlement will reduce harmful emissions of nitrogen oxides, which can have serious impacts on respiratory health for communities along Colorado’s Front Range," said Cynthia Giles, assistant administrator for EPA’s Office of Enforcement and Compliance Assurance. "Cutting these emissions will also help improve environmental quality and visibility in places like Rocky Mountain National Park."

"This agreement will mean cleaner air for Colorado residents downwind of the CEMEX facility and will contribute to improved air quality in the Rocky Mountain National Park, which is one of our nation’s most cherished public spaces," said Ignacia S. Moreno, assistant attorney general for the Justice Department’s Environment and Natural Resources Division. "The settlement is part of the Justice Department’s continuing efforts, along with the EPA, to bring significant sources of air pollution within the cement manufacturing sector into compliance with the Clean Air Act."

The Department of Justice , on behalf of EPA, filed a complaint against CEMEX alleging that between 1997—2000, the company unlawfully made modifications at its Lyons plant that resulted in significant net increases of nitrogen oxide and particulate matter (PM) emissions. The complaint further alleges that these increased emissions violated the CAA’s Prevention of Significant Deterioration and Non-Attainment New Source Review requirements, which state that companies must obtain the necessary permits prior to making modifications at a facility and install and operate required pollution control equipment if modifications will result in increases of certain pollutants.

As part of the settlement, CEMEX will install "Selective Non-Catalytic Reduction" (SNCR) technology at their Lyons facility, which is an advanced pollution control technology designed to reduce nitrogen oxide emissions. This will reduce their nitrogen oxide emissions by approximately 870 to 1,200 tons of nitrigen oxide per year. The initial capital cost for installing SNCR is approximately $600,000 and the cost of injecting ammonia into the stack emissions stream, a necessary part of the process, is anticipated to be about $1.5 million per year.

The settlement is part of EPA’s national enforcement initiative to control harmful air pollution from the largest sources of emissions, including Portland cement manufacturing facilities.

Nitrogen Oxide emissions may cause severe respiratory problems and contribute to childhood asthma. These emissions also contribute to acid rain, smog, and haze which impair visibility in national parks. CEMEX’s facility is located within 20 miles of Rocky Mountain National Park, and its emissions may contribute to visibility impairment and to the nitrogen pollution problem that is affecting the park’s vegetation, water quality, and trout populations. Air pollution from Portland cement manufacturing facilities can also travel significant distances downwind, crossing state lines and creating region-wide health problems.

The proposed consent decree will be lodged with the Federal District Court for the District of Colorado, and will be subject to a 30-day public comment period.


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