acid rain Articles

  • Environmental Effects of Acid Rain

    Air Pollution Creates Acid Rain Scientists have discovered that air pollution from the burning of fossil fuels is the major cause of acid rain. Acidic deposition, or acid rain as it is commonly known, occurs when emissions of sulfur dioxide (SO2) and oxides of nitrogen (NOx) react in the atmosphere with water, oxygen, and oxidants to form various acidic compounds. This mixture forms a mild ...

  • Acid Rain Progress Report

    In 1990, EPA Congress established the Acid Rain Program under the Clean Air Act. The principal goal of the program is to achieve reductions of 10 million tons of sulfur dioxide (SO2) and 2 million tons of nitrogen oxides (NOx), the primary components of acid rain. These pollutants, in their various forms, lead to the acidification of lakes and streams rendering some of them incapable of ...

  • Acid rain: past, present, and future

    During 1970s, acid rain had devastated several regions of North America and Western Europe. Since then counter measures implemented in these regions have gradually brought the problem under some control. But has the world nullified what was once a very strongly perceived threat of acid rain? Far from it; studies conducted in recent years show that acid rain is now as severe a threat to the ...


    By Inderscience Publishers

  • Acid Rain Program: SO2 Allowance Trading System Fact Sheet

    The innovative, market-based SO2 allowance trading component of the Acid Rain Program allows utilities to adopt the most cost-effective strategy to reduce SO2 emissions at units in their systems. The Acid Rain Program operating permit outlines the specific program requirements and compliance options chosen by each source. Affected utilities are also required to install systems that continuously ...

  • Chronic and episodic acidification of Adirondack streams from acid rain in 2003–2005

    Limited information is available on streams in the Adirondack region of New York, although streams are more prone to acidification than the more studied Adirondack lakes. A stream assessment was therefore undertaken in the Oswegatchie and Black River drainages; an area of 4585 km2 in the western part of the Adirondack region. Acidification was evaluated with the newly developed base-cation ...

  • Cleaning the Air We Breathe, Coal Fired Power Plant - Case Study

    By cleaning flue gases from coal power plants, the amount of environmentally hazardous emissions can be sharply reduced. Mist elimination from Munters is a critical part of this process. Munters has worked with leading power generating companies for decades and have through testing and follow up built an extensive parameter database and design tool to be able to adapt and optimize results based ...


    By Munters Zeol Division

  • Power-law distribution of acid deposition

    The scaling behaviour in acid deposition dynamics of 184 monitoring sites under the National Atmospheric Deposition Program (NADP) is analysed for the 1978–2001 period. The results show that: the distribution of weekly hydrogen deposition (WHD) is consistent with a power law in two different regimes separated by a crossover WHD (CWHD), and both the CWHD and its probability density increase as the ...


    By Inderscience Publishers

  • How levels of acidity can affect aquatic ecosystems

    We already know that the pH of water can have detrimental effect on human health, and can be affected by a number of different factors including: residue from volcanic ...


    By AQUAREAD Limited

  • Least-Cost Approaches to Reducing Acid Emissions

    ' The costs of meeting sulfur emission targets can be high. It is essential, therefore, that countries adopt policies which (a) minimize the net economic and social costs of reducing emissions to the agreed target levels, and (b) maximize the overlap between measures designed to reduce acidifying emissions and those addressing other forms of air pollution. This note discusses alternative ...


    By The World Bank

  • Hydrochemical changes in a reservoir that receives water contaminated by acid mine drainage

    The aim was to characterize hydrochemical changes that take place in the Sancho reservoir, which receives waters contaminated by acid mine drainage (AMD) from the Meca River (Iberian Pyrite Belt, SW Spain). The sampling procedure comprised bimonthly campaigns carried out between October 2011 and May 2012, in the entrance of the reservoir and in the input river waters. In addition to in situ ...


    By IWA Publishing

  • Environmental impact prediction of air quality in a food processing environment

    An impact study of food processing factory in Nigeria on air quality of its environment was studied using a factorial experiment. The effects of three primary air pollutants (by-products of the food processing): nitrogen (IV) oxide (NO2), carbon (IV) oxide (CO2) and sulphur (IV) oxide (SO2) on formation of acid rain also studied. These factors and their interactions in the predictive model showed ...


    By Inderscience Publishers

  • Nilu - A centre for air pollution studies in Europe

    NILU’s strong position in atmospheric European air research originated with studies of long range transport of air pollutants and acid rain in the 1970’s. This involvement is continued in the European Monitoring and Evaluation Programme (EMEP) established in 1977, in which NILU has a central position as the Chemical Co-ordinating ...

  • Study of precipitation chemistry over an industrial city

    The growing trend of industrialization has marked impact on the atmospheric chemistry around the globe. Such impacts are also predicted for developing countries like India. Acid precipitation due to secondary pollutants is one of them. The present investigation was conducted with an aim of studying the precipitation chemistry over Asansol city, India during the monsoon season. The rain water ...

  • Impact of environmental regulations on the optimal allocation of coal among regions in the United States

    This study investigates the environmental impact of acid rain controls on the optimal allocation of coal among regions in the United States using a quadratic programming approach. A per-unit tax, which is equal to the marginal damage cost of sulfur oxides emissions, is used as the regulatory means of controlling sulfur pollution. The government can therefore make utilities decrease sulfur ...


    By Inderscience Publishers

  • Surface and Rainwater Chemistry in Sri Lanka - A Risk of Acidification

    Abstract: Chemical constituents of surface and rain water in Sri Lanka were analysed to examine the susceptibility of aquatic environment for episodic acidification. The buffer intensity of different types of surface water ranged from 8.09 ± 4.61 × 10^{-4} to 55.05 ± 21.18 × 10^{-4} moles l^{-1} pH^{-1}. The pH values of the rainwater samples collected island-wide once and at Kandy on a regular ...


  • Better air quality in Norway

    The air over Norway has become better and cleaner past the last ten years, shows a report that The Norwegian Institute for Air Quality (NILU) has worked out for The Norwegian Pollution Control Authority (SFT). The concentration of persistent pollutants and metals in air and precipitation from other countries has been reduced. There is also less acid rain over Norway than ...

  • Research on the characteristics of the water quality of rainwater runoff from green roofs

    This paper investigates the water quality characteristics of rainwater runoff from dual-substrate-layer green roofs in Tianjin, China. The data were collected from four different assemblies and three types of simulated rains. The storm-water runoff quality was monitored from early June through late October 2012 and from July through late November 2013. The results revealed that the runoff water ...


    By IWA Publishing

  • Preserving the SO2 market - review the recent challenge mounted by New York State against the US market in sulphur dioxide allowances

    The US District Court for the Northern District of New York recently struck down a New York State law that affected the US market for sulphur dioxide (SO2) allowances. In Clean Air Markets Group v Pataki,* the court ruled that New York’s law violated the Supremacy and Commerce Clauses of the US Constitution. New York enacted the anti-trading law in May 2000 with the purported goal of reducing ...

  • A multi-criteria decision approach for choosing and ranking SO2 emission reduction measures for a network of power stations

    During recent years, it has become evident that power plants are a major source of pollution that causes changes in the chemistry and physics of the environment. In this paper, the Analytic Hierarchy Process (AHP) was employed to develop a strategy for reducing sulphur dioxide emissions from a network of power plants in Kuwait by at least two-thirds. Along with NOx, sulphur dioxide is known to be ...


    By Inderscience Publishers

  • Communication to the Council and the European Parliament on a Community Strategy to Combat Acidification

    On 12th March 1997, the European Commission adopted a proposal from the Environment Commissioner Ritt Bjerregaard on a European Union strategy to combat acidification. The strategy will, by 2010, reduce significantly the extent of the areas in the European Union where the tolerance of sensitive ecosystems to acidity is exceeded. Main elements of the strategy include establishment of national ...

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