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Section 3: Primary Air Pollutants

Section 3: Primary Air Pollutants. http://www.docstoc.com/docs/530372/Air-Pollution-I. http://www.dnrec.delaware.gov/volunteer/Pages/AQvolunteers.aspx. 18. What is the difference between a primary air pollutant and a secondary air pollutant?.

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Section 3: Primary Air Pollutants

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  1. Section 3: Primary Air Pollutants http://www.docstoc.com/docs/530372/Air-Pollution-I

  2. http://www.dnrec.delaware.gov/volunteer/Pages/AQvolunteers.aspxhttp://www.dnrec.delaware.gov/volunteer/Pages/AQvolunteers.aspx

  3. 18. What is the difference between a primary air pollutant and a secondary air pollutant? Primary air pollutants are emitted directly into the air from sources. They can have effects both directly and as precursors of secondary air pollutants. Secondary air pollutants are chemicals formed through reactions in the atmosphere. http://www.tropical-rainforest-animals.com/Air-Pollutants.html

  4. primary air pollutants and secondary air pollutants http://nptel.iitm.ac.in/courses/Webcourse-contents/IIT-Delhi/Environmental%20Air%20Pollution/air%20pollution%20(Civil)/Module-1/3.htm

  5. 19. Complete the following chart pertaining to primary air pollutants. It is a gas that is formed when sulfur is exposed to oxygen at high temperatures during fossil fuel combustion, oil refining, or metal smelting Sulfur dioxide (SO2) The formation of acid rain and aerosols SO2 dissolves in cloud droplets and oxidizes to form sulfuric acid (H2SO4), which can fall to Earth as acid rain or snow or form sulfate aerosol particles in the atmosphere.

  6. http://www.industrysearch.com.au/Products/Images/15186_1.jpg

  7. 19. Complete the following chart pertaining to primary air pollutants. These highly reactive gases form when oxygen and nitrogen react at high temperatures during combustion or lightning strikes Nitrogen oxides (NO and NO2, referred together as NOx) In the atmosphere NOx reacts with (VOCs) and carbon monoxide to produce ground-level ozone. These are eventually oxidized to nitric acid (HNO3). Nitric acid contributes to acid deposition and to aerosol formation.

  8. http://3.bp.blogspot.com/_vNOxXmOhsmU/TKrFnoEtI2I/AAAAAAAAABE/gCvwRA_wbs8/s1600/lightning1.jpghttp://3.bp.blogspot.com/_vNOxXmOhsmU/TKrFnoEtI2I/AAAAAAAAABE/gCvwRA_wbs8/s1600/lightning1.jpg

  9. 19. Complete the following chart pertaining to primary air pollutants. CO is an odorless, colorless gas formed by incomplete combustion of carbon in fuel. • CO binds to hemoglobin in red blood cells, reducing their ability to transport • and release oxygen throughout the body. Carbon monoxide (CO) Low exposures can aggravate cardiac ailments, while high exposures cause central nervous system impairment or death. It also plays a role in the generation of ground-level ozone.

  10. 19. Complete the following chart pertaining to primary air pollutants. Volatile organic compounds (VOCs) Some anthropogenic VOCs such as benzene are known carcinogens. VOCs are emitted from a very wide range of sources, including fossil fuel combustion, industrial activities, and natural emissions from vegetation and fires. VOCs are chemical precursors of ground-level ozone and aerosols.

  11. Sources of Primary Air Pollutants http://greeningforward.org/environmental-issues/air-pollution/

  12. Section 4 Secondary Air Pollutants http://10.105.16.17/ibreports/images/bi.jpg?fn=_190_AllStaff&fp=46&ip=10.106.98.111&ibip=10.105.16.15&ldu=1&re=0&bu=shrdocs.com/pars_docs/refs/40/39871/img4.jpg&bc=Website%20contains%20prohibited%20Forums%20content.

  13. 20. Secondary air pollutants form when primary pollutants react in the atmosphere. 21. Ground-level ozone (O3) is a pernicious secondary air pollutant, toxic to both humansand vegetation.

  14. http://aura.gsfc.nasa.gov/images/features/ground_ozone.jpg

  15. http://www.intechopen.com/source/html/18640/media/image9.png

  16. http://www.blackcommentator.com/258/258_images/258_cartoon_santa_air_pollution_large.jpghttp://www.blackcommentator.com/258/258_images/258_cartoon_santa_air_pollution_large.jpg

  17. Section 5 Aerosols http://www.redorbit.com/media/uploads/2013/06/aerosols-617x416.jpg

  18. In addition to gases, the atmosphere contains solid and liquid particles that are suspended in the air. These particles are referred to as aerosols or particulate matter (PM). http://www.mcwetboy.net/maproom/images/modis_aerosols.jpg

  19. Size of aerosols. between 0.01 and 10 micrometers in diameter Aerosols are found where? in the lower troposphere How long do they reside here? a few days State the (2) ways by which they are removed. They are removed when rain or snow carries them out of the atmosphere or when larger particles settle out of suspension due to gravity

  20. http://www.scdhec.gov/environment/baq/images/PM/PMSizes.jpg

  21. 24. Complete the table to distinguish between large aerosol particles and small aerosol particles.

  22. 25. High concentrations of aerosols are thought to be a major cause of what? cardiovascular disease and are also suspected to cause cancer http://2.bp.blogspot.com/-h3pd78nTrO4/UOfxu6z08AI/AAAAAAAADAk/kCDyI3c3_hw/s1600/201202030031.jpg

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