CHM 107 Unit 2

The process of evaluating data and making predication in an organized manner of probabilities is called ____ assessment

risk

Particulate matter with the designation PM10 includes particles with an average diameter of 10 ___ or less.

um

Which of the following is a natural source of both ozone & nitrogen oxides?

Lightning

Which compound reacts with ozone reducing it on highways

NO

What correctly describes air pollutants? Select all

Particulate matter is an example of an air pollutant Some air pollutants are hazardous at levels below 1ppm

Which of the following options correctly describe particulate matter? Select all

Some matter can cause heart disease Dust is an example of particulate matter Can originate from fires, car engines, or coal-burning plants

Which are common units of conc. used for air pollutants?

ppm ug/m3 ppb

Environmental effects of So2

Can react with water to form acid rain Can lead to the formation of aerosols

A weather station reports the ambient air temperature. What does this refer to?

The temp of the air at the lowest level of the troposphere

Which of the following species in conversion of NO to NO2

VOC's, OH, O3