chapt 19 - air quality
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air is a mixture of gases nitrogen - oxygen - carbon dioxide - noble gases -
nitrogen - 78% oxygen - 21% carbon dioxide - 0.04% noble gases - 0.96%
air pollutants Source of carbon monoxide CO
incomplete combustion of feuls containing carbon
air pollutants source of methane? CH4
decomposition of plant and animal matters in wetlands and marshes by bacteria in the absense of oxygen
air pollutants Sources of nitrogen oxides? NO & NO2
during lightning or from internal combustion engines as a result of the reaction between O2 and N2 at very high tempretures 🌩🚙
air pollutants Sources of Sulfure dioxide? SO2
combustion of coal and fossil feuls from volcanoes 🌋
air pollutants Sources of unburned hydrocarbons?
internal combustion engines of vehicles 🚗
air pollutants Sources of ozone
Produced when nitrogen oxide reacts with unburned hydrocarbons in the pressence of light.
harmful effects of air pollutants carbon monoxide
combines with haemoglobin in the blood, preventing absorption of oxygen, lack of oxygen causes brain damage
harmful effects of air pollutants methane
one of the greenhouse gases & has a more warming effect than CO2
harmful effects of air pollutants nitrogen oxides & sulfur dioxide
causes breathing difficulties it also causes acid rain which causes plant damage, kills marine lives, promotes corrosion of limestone buildings
harmful effects of air pollutants unburned hydrocarbons
forms photochemical smog which leads to formation of ozone, sulfure dioxide and nitrogen oxide eye and respitory track irritation
harmful effects of air pollutants ozone
slows down photosynthesis in plants, irritation to the respitory system, breathing difficulties, headache, fatigue