3.) AIR POLLUTION The air quality of in Los Angeles was very poor in the 1980s.
ID: 121459 • Letter: 3
Question
3.) AIR POLLUTION The air quality of in Los Angeles was very poor in the 1980s. However, it is better now. D) NO 0.14 NO 2 -03 0.12 80.06 .04 0.02 12 2 46 8 10 12 4 68 10 12 AM PM NO2 Air Quality. 1990-2010 (Based on Annual Arithmetic Average) Los Angeles-Long Beach, CA SITE-060372005 POC-1 Figures (I) Shows the concentration of NO, NO2, and Os are shown during a typical day in Los Angeles a.) What is NO.? What are the sources of NO, in the urban atmosphere? (4 points) b.) Why is there a peak in NO2 in the morning? (3 points) c.) Please explain the decreasing trend of NO2 concentrations in Los Angeles from 1990 20102 (3 points)Explanation / Answer
NOx
In atmospheric chemistry, NOx is a generic term for the nitrogen oxides that are most relevant for air pollution, namely nitric oxide (NO) and nitrogen dioxide (NO2). Nitrous oxide emissions gets produced by both natural and human sources. Important natural sources include soils under natural vegetation and the oceans. Natural sources create 62% of total emissions. Important human sources come from agriculture, fossil fuel combustion and industrial processes. Human-related sources are responsible for 38% of total emissions.
b Reason:
1.Vehicular traffic and power plant emissions
2. Heat and sunlight
3. Limited air movement
c) state implementation plan (SIP) consists of
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