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  2. Sulfur cycle - Wikipedia

    en.wikipedia.org/wiki/Sulfur_cycle

    The important sulfur cycle is a biogeochemical cycle in which the sulfur moves between rocks, waterways and living systems. It is important in geology as it affects many minerals and in life because sulfur is an essential element (), being a constituent of many proteins and cofactors, and sulfur compounds can be used as oxidants or reductants in microbial respiration. [1]

  3. Acid rain - Wikipedia

    en.wikipedia.org/wiki/Acid_rain

    The overall goal of the Acid Rain Program established by the Act [111] is to achieve significant environmental and public health benefits through reductions in emissions of sulfur dioxide (SO 2) and nitrogen oxides (NO x), the primary causes of acid rain. To achieve this goal at the lowest cost to society, the program employs both regulatory ...

  4. Acid Rain Program - Wikipedia

    en.wikipedia.org/wiki/Acid_Rain_Program

    The Acid Rain Retirement Fund (A.R.R.F) is an all-volunteer, non-profit environmental educational organization, incorporated in Maine, dedicated to reducing pollution by purchasing and "retiring" marketable sulfur dioxide emissions allowances issued by the U.S. Environmental Protection Agency’s Acid Rain Program. A.R.R.F. was created in 1995 ...

  5. Acid mine drainage - Wikipedia

    en.wikipedia.org/wiki/Acid_mine_drainage

    These, combined with reduced pH, have a detrimental impact on the streams' aquatic environments. [citation needed] The same type of chemical reactions and processes may occur through the disturbance of acid sulfate soils formed under coastal or estuarine conditions after the last major sea level rise, and constitutes a similar environmental hazard.

  6. Biodesulfurization - Wikipedia

    en.wikipedia.org/wiki/Biodesulfurization

    The combustion of crude oil releases sulfur oxides (SO x) to the atmosphere, which are harmful to public health and contribute to serious environmental effects such as air pollution and acid rains. [ 2 ] [ 3 ] In addition, the sulfur content in crude oil is a major problem for refineries , as it promotes the corrosion of the equipment and the ...

  7. Coal pollution mitigation - Wikipedia

    en.wikipedia.org/wiki/Coal_pollution_mitigation

    These measures aim to reduce coal's impact on human health and the environment. The combustion of coal releases diverse chemicals into the air. The main products are water and carbon dioxide, just like the combustion of petroleum. Also released are sulfur dioxide and nitrogen oxides, as well as some mercury

  8. Water pollution - Wikipedia

    en.wikipedia.org/wiki/Water_pollution

    The main source of sulfur and nitrogen compounds that result in acid rain are anthropogenic, but nitrogen oxides can also be produced naturally by lightning strikes and sulphur dioxide is produced by volcanic eruptions. [66] Acid rain can have harmful effects on plants, aquatic ecosystems and infrastructure. [67] [68]

  9. Sulfur isotope biogeochemistry - Wikipedia

    en.wikipedia.org/wiki/Sulfur_isotope_biogeochemistry

    The effect of these metabolisms on sulfur isotopic composition of the reactants and products is also highly variable, depending on the rate of relevant reactions, availability of nutrients, diagenesis, and other biological, physical and environmental parameters.