Its considered secondary, but it can form from primary causes I heard.
if we control the primary precursors of photo chemical smog,such as NO2 and hydrocarbons,the secondary precursors such as ozone and PAN,the photo chemical smog will automatically be reduced.
if we control the primary precursors of photo chemical smog,such as NO2 and hydrocarbons,the secondary precursors such as ozone and PAN,the photo chemical smog will automatically be reduced.
photochemical smog
sunlight to produce secondary pollutants such as ozone and other volatile organic compounds. These interactions result in the formation of a hazy, brownish smog that can be harmful to human health and the environment.
Ozone is a pollutant found in smog formed by the reaction of sunlight with pollutants like nitrogen oxides and volatile organic compounds. Smog is a mixture of pollutants, including ozone, particulate matter, and other harmful chemicals, that can have adverse effects on human health and the environment.
yes
No, "PAN" (peroxyacetyl nitrate) is not a primary pollutant; it is a type of secondary pollutant formed through chemical reactions of primary pollutants like volatile organic compounds (VOCs) and nitrogen oxides (NOx) in the atmosphere. PAN is a photochemical smog component formed in the presence of sunlight.
Yes they are pollutants. They are secondary pollutants.
Water vapor is not typically involved in the chemical reaction that produces smog. Smog is primarily formed by the interaction of sunlight with pollutants such as nitrogen oxides and volatile organic compounds. Water vapor can play a role in the formation of secondary pollutants within smog, but it is not a primary component of the initial chemical reactions.
primary and secondary demand
Primary Means, it is individual there is no dependence, But Secondary will allays depends on Primary, If you want to do Secondary, you should complete primary first, There is no precondition to primary, but for Secondary Primary is the Precondition, first you should do primary, then only you are able to do secondary.
`remove drive belt. disconnect primary and secondary ignition coil harness.remove AIR pump mounting bolts and remove the unit.