Main pollutant present in automobile exhaust is

More Questions from Environmental Engineering

• Water effluent generated in printing industry is decolourised by
• Dissolved oxygen content in river water is around __________ ppm.
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• Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels.
• Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels.
• Nitrogen oxides (NOx) is not produced in the __________ industry.
• Peroxyacyl nitrate (PAN), a pollutant is found in the
• Acute danger to human life (i.e. death) exists, if the concentration of CO2 in atmospheric air exceeds __________ percent (by volume).
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