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2 edition of Impact of primary sulfate and nitrate emissions from selected major sources found in the catalog.

Impact of primary sulfate and nitrate emissions from selected major sources

Joseph D McCain

Impact of primary sulfate and nitrate emissions from selected major sources

phase II, sulfuric acid plant and pulp and paper mill

by Joseph D McCain

  • 112 Want to read
  • 40 Currently reading

Published by U.S. Environmental Protection Agency, Atmospheric Sciences Research Laboratory in Research Triangle Park, NC .
Written in English

    Subjects:
  • Sulfates,
  • Nitrates,
  • Sulfuric acid industry -- Environmental aspects -- Georgia,
  • Wood-pulp industry -- Environmental aspects -- Georgia

  • Edition Notes

    StatementJ.D. McCain, W.G. Kistler, and D.H. Carnes
    ContributionsKistler, W. G, Carnes, D. H, Atmospheric Sciences Research Laboratory
    The Physical Object
    Pagination5 p. ;
    ID Numbers
    Open LibraryOL14891630M

    @article{osti_, title = {Impact of elevated nitrate on sulfate-reducing bacteria: A comparative study of Desulfovibrio vulgaris}, author = {He, Q and He, Z and Joyner, D C and Joachimiak, M and Price, M N and Yang, Z K and Yen, H.-C. B. and Hemme, C L and Chen, W and Fields, M and Stahl, D A and Keasling, J D and Keller, M and Arkin, A P and Hazen, T C and Wall, J D and Zhou, J. Sulfur oxide emissions from man-made sources consist primarily of sulfur dioxide. Both during emission and while in the atmosphere, gaseous sulfur dioxide can become oxidized to form sulfate (SO4) † particulate matter. The sulfate aerosol is mainly composed of sulfuric acid and corresponding salts such as ammonium sulfate.

    The primary agricultural NPS pollutants are nutrients, sediment, animal wastes, salts, and pesticides. Agricultural activities also have the potential to directly impact the habitat of aquatic species through physical disturbances caused by livestock or equipment. Although agricultural NPS pollution is a .   China’s emissions of the primary greenhouse gas carbon dioxide have been increasing rapidly (Figure 2). Although per capita emissions in China are currently at the global average and each person in the US emits approximately four times as much, in China surpassed the US as the country emitting the most carbon dioxide (Figure 2). China.

    emissions and biogenic emissions as contributors to air pollution. Geogenic6 emissions are defined as emissions caused by the non-living world, such as volcanic emissions, sea-salt emissions, and na tural fires. Biogenic emissions come from the living world; such as volatile organic compound (VOC) emissions from forests and CH 4 emissions from. Staple food crops require anions such as nitrate (NO 3 ¯), sulphate (SO 4 2 ¯), phosphate (PO 4 3 ¯) and chloride (Cl ¯) (Berardi, ). The major source of anions is the soil, which under favourable conditions make them available to plants and then humans via diets.


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Impact of primary sulfate and nitrate emissions from selected major sources by Joseph D McCain Download PDF EPUB FB2

The complete report, entitled "Impact of Primary Sulfate and Nitrate Emissions from Selected Major Sources: Phase 1. Coal-Fired Power Plant," (Order No. PB /AS; Cost: $, subject to change) will be available only from: National Technical Information Service Port Royal Road Springfield, VA Telephone: The EPA.

United States Environmental Protection Agency Atmospheric Sciences Research Laboratory Research Triangle Park NC 1 / Research and Development EPA//S/ Mar. v>EPA Project Summary Impact of Primary Sulfate and Nitrate Emissions from Selected Major Sources: Phase II: Sulfuric Acid Plant and Pulp and Paper Mill J.D.

McCain, W.G. Kistler, and D.H. Cannes The impact. Get this from a library. Impact of primary sulfate and nitrate emissions from selected major sources: phase II, sulfuric acid plant and pulp and paper mill. [Joseph D McCain; W G Kistler; D H Carnes; Atmospheric Sciences Research Laboratory.].

Get this from a library. Impact of primary sulfate and nitrate emissions from selected major sources: phase I, coal-fired power plant. [Joseph D McCain; W G Kistler; D H Carnes; Atmospheric Sciences Research Laboratory.]. VOCs and primary PM from anthropogenic sources were.

pear to have a major impact on model results, leading to sig- mate and emissions on future sulfate-nitrate-ammonium aerosol. Highlights Ambient concentrations of PM 10 sulfate and nitrate have increased during the period. The PM 10 sulfate trends are generally consistent with changes of SO 2 emissions in China.

The results demonstrate emissions transported from distant sources can impact local air quality. The primary sources of human-influenced emissions of nitrous oxide are agricultural soil management, animal manure management, sewage treatment, mobile and stationary fuel combustion, adipic acid production, and nitric acid production.

Nitrous oxide is also emitted naturally from a wide variety of biological sources. Top of Page. Acid Plant. The competition for bases in nitrate and sulfate aerosol formations significantly affects the concentration of nitrate aerosols. Sensitivity experiments with reduced sulfate precursor emissions, achieved through the use of the CAM-Chem model, show that nitrate concentration is particularly affected by sulfate precursor emissions in winter when their changes are linearly correlated.

Hong Kong consisted of 31% secondary sulfate and 13% secondary nitrate. Zhang et al. [10] studied sulfate and nitrate sources throughout China with the CMAQ model at a km grid resolution and found that power plant and mobile emissions were the dominant sources of these two components.

Sulfate and Nitrate Particulates as Related to S02 and N0x Gases and Emissions J. Sandberg, D. Levaggi, R. DeMandel, and W. Siu Bay Area Air Pollution Control District San Francisco, California Five years () of sulfate and nitrate fractions were an-alyzed from high-volume particulate samples at 8 stations in the San Francisco.

Lake - Lake - Sulfates, nitrates, and phosphates: Sulfate usually occurs as a principal ion in lake waters. Under anaerobic conditions in which bacteria persist in the oxidation of biological material, hydrogen sulfide is produced.

When anoxic conditions exist in the deep waters just above the sediments, and the water is acidic enough to precipitate the iron present, hydrogen sulfide occurs. We used tefton/nylon filter packs to measure concentrations 0f nitrate (aerosol plus vaPor), sulfate, ammonium, and calcium at three locations in China during October of On the average, molar sulfate concentrations were less than twice the total nitrate concentrations.

Adding low concentrations (50– ppm) of nitrate continuously to all injected water can eliminate sulfide from produced water and oil. The mechanism underlying this technology appears to be largely microbial. Nitrate-reducing, sulfide-oxidizing bacteria remove sulfide with production of nitrite and other reactive nitrogen species.

– Nitrate ( to d-1) and sulfate ( d-1) were consumed at similar rates – Nitrate effective at oxidizing sulfide back to sulfate • BTEX removal: – Toluene preferentially degraded naturally over B, EB and X – Sulfate preferentially stimulated removal of o-X, but not B, EB and m+p-X – Nitrate stimulated removal of EB and m+p-X.

Following the previous study on particulate sulfate and nitrate [18], we selected unbroken series data from five urban sites (Kwun Tong, Yuen Long, Sham Shui Po, Central Western, and Tsuen Wan.

Sulfate and nitrate are both chemical compounds often found in drinking water and foods. They are not the same thing, although both can cause health problems when consumed in excess amounts. Sulfates, mineral salts that contain sulfur and often occur naturally in food and water, also differ from sulfites, a type of sulfur chemical used as a.

[1] Global simulations of sulfate, nitrate, and ammonium aerosols are performed for the present day and using the chemical transport model GEOS‐Chem. Changes in climate and emissions projected by the IPCC A1B scenario are imposed separately and together, with the primary focus of the work on future inorganic aerosol levels over the United States.

major sources of nitrate pollution Although there are many sources of nitrogen (both natural and anthropogenic) that could potentially lead to the pollution of the groundwater with nitrates, the anthropogenic sources are really the ones that most often cause the amount of nitrate to rise to a.

The report gives results of an evaluation of the effects of fuel and combustion modifications on the formation of primary acid aerosols (used broadly to include all sulfates, nitrates, chlorides, and fluorides in all their forms) and their significance as combustion-generated pollutants from large stationary sources.

Primary acid aerosols are emitted directly from a source or formed (primarily. primary: polluting compounds that come directly out of the smoke-stack, exhaust pipe or natural emission source; include CO CO2 SO2 NOx; many VOC's are primary secondary: primary pollutants that have undergone transformation in the presence of sunlight, water, oxygen or other compounds; ozone is secondary.

This new approach aims to reduce the impact 7 of climate anomalies on the trend analysis so that the impact of emission reductions on 8 the wet deposition can be revealed.

This approach is applied to a two-decade wet 9 deposition dataset of sulfate (SO ), nitrate (NO 3-) and ammonium (NH 4+) at rural 10 Canadian sites.

Analysis results show.Nitrate and other forms of N in water can be from natural sources, but when N concentrations are elevated, the sources are typically associated with human activities (Dubrovski et al., ).

Concerns about nitrate and total N in Minnesota’s water resources have been increasing due to effects of nitrate on certain aquatic life and drinking water.Organics, sulfate, nitrate, ammonium, and chloride in the three winters (Figure 1 and Table 1) displayed a similar temporal pattern as PM 1, which was high in and low in Inthe mass concentration of organics, sulfate, nitrate, ammonium, and chloride was, and μg m –3, respectively.

Compared to those in.