Photochemical smog - Study guides, Class notes & Summaries

IB ESS Topic 6.3; Photochemical Smog Test 2023...

Photochemical Smog Test 2023...

Formation of photochemical smog Correct Answer - Photochemical smog forms when large quantities of hydrocarbons and nitrogen oxides emitted, mainly from moto vehicles, into the troposphere under the influence of sunlight - It occurs in cities where there are large numbers of vehicles, sunny days, and conditions - Photochemical smog is a yellow-brown haze due to nitrogen dioxide - The presence of this gas and other pollutants can cause health problems Formation of nitrogen oxides Correct ...

What is photochemical smog? Correct Answer A form of lower atmosphere air pollution. What are primary pollutants? Give five examples. Correct Answer Pollutants emitted directly into the atmosphere. E.g. carbon dioxide, carbon monoxide, nitric oxide, sulphur dioxide, and unburnt hydrocarbons. What are secondary pollutants? Give four examples. Correct Answer Pollutants formed in the atmosphere by chemical reactions of primary pollutants. E.g. ozone, nitrogen dioxide, nitric acid, and sulphur...

The .................... of fossil fuels produces primary pollutants that may generate ........................ pollutants and lead to photochemical smog, the levels of which can vary by .................., population ................. and .................. Correct Answer combustion, secondary, topography, density, climate Photochemical smog can be reduced by decreasing human .............. on ...............fuels. Correct Answer reliance, fossil Primary pollutants from the combustion of ...

1. Of all the air pollutants coming out of the tailpipe of the automobile _____ is present in the highest concentration. Correct Answer carbon monoxide 1. Photochemical smog is the result of the interaction of _____ with the exhaust gases from an automobile. Correct Answer sunlight 1. The whole process begins inside the internal combustion engine where N2(g) and O2(g) combine to form NO(g) or _____ (supply the chemical name). Correct Answer nitric oxide 1. In air the colorless NO(g) rea...

90% atmospheric ozone is where Correct Answer stratosphere 10% atm ozone is where Correct Answer troposphere what causes O3 in tropo? Correct Answer -sunlight -NOx --sources --variability --trends -volatile orgo compounds --sources --ex NO2 Correct Answer reactive trace gas less NO2 emitted to atm --> Correct Answer less ozone sources of orgo emissions are Correct Answer diverse -petroleum -plants etc primary source of orgo matter? Correct Answer forests / vegetati...

Pollution Correct Answer the addition of a substance or an agent to an environment by human activity, at a rate greater than at which it can be rendered harmless by the environment, and which has an appreciable effect on the organisms within it. Primary Pollutant Correct Answer emitted directly from the polluting process. The process could be natural or anthropogenic. Secondary Pollutant Correct Answer primary pollutants undergo reactions with other chemicals in the atmosphere Primary P...

Urban air pollution (AP) Correct Answer - 1 billion people are exposed to AP per year - 1 million people die prematurely from AP - 2% of GDP is lost by AP in MEDCs - 5% of GDP lost by Ap in LEDCs Primary Pollutants Correct Answer - emitted directly from a process - natural: (e.g. volcanoes) - anthropogenic: (human made, e.g. industry, motor vehicles) - building sites - factories - combustion of fossil fuels which produces: - carbon monoxide - carbon dioxide - unburned hydrocar...

ISA Municipal Specialist Final Exam Questions and Answers 100% Correct Urban Forestry - CORRECT ANSWER-Management of naturally occurring and planted trees and associated plants in urban areas. Municipal arborists must be skilled in - CORRECT ANSWER-policy development, budgeting, personnel management, equipment acquisition and maintenance, contract development, negotiation and management, public relations, and operating in a public environment. Aboriculture focuses on - CORRECT ANSWER...