PA-1

Solid particular matter with one dimension being 5 times larger than its diameter is identified as:

• Fumes

• Fibres

• Foam

• Smog

Which of the following compounds is a secondary pollutant?

• Sulfur oxide

• Nitric oxide

• Ozone

• Dust particles

Most of the anthropogenic pollutants are relevant for us if present in

• Mesosphere

• Thermosphere

• Troposphere

• Stratosphere

The most relevant source of sulfur oxide is

• Petroleum refinery

• Metallic carpentry

• Paper-mill facilities

• Coal-powered power plants

The ozone layer is located in

• Mesosphere

• Stratosphere

• Troposphere

• Ionosphere

Which of the following compounds can produce acid rain?

• Sulfur oxide

• Carbon monoxide

• Volatile organic compounds (VOCs)

• All mentioned gases can

Which is the most acutely toxic pollutant?

• Methane

• Asbestos

• Carbon monoxide

• Nitric oxide

Which of the following values can be used to express the immission of soot particles?

• 3.12 mg/m3

• 6.5 mg/min

• <dp> = 7.5 μg

• 10.5 mg/m2

The photochemical smog is the phenomenon occurring at the ... scale

• Local

• Regional

• Only the closest area to the emission source

• Global

The flow of gasses produced by the industry is called

• Inmission

• Immision

• Contamination

• Emission