Encyclopedia of Environmental Science and Engineering, Volume I and II

56 AIR POLLUTION INSTRUMENTATION Environmental Measurements Ambient air sampling systems are designed to collect and store pollu ...

AIR POLLUTION INSTRUMENTATION 57 networks are offered for ozone, sulfur dioxide, total sulfur, and oxides of nitrogen. Calibrati ...

58 AIR POLLUTION INSTRUMENTATION REFERENCES American Society of Mechanical Engineers, Determining dust concen- tration in a gas ...

59 AIR POLLUTION METEOROLOGY EFFECTS OF WEATHER ON POLLUTION Introduction As the world’s population and industrialization grow, ...

60 AIR POLLUTION METEOROLOGY mixing ability of the atmosphere is particularly bad. (3) Meteorological factors have to be taken i ...

AIR POLLUTION METEOROLOGY 61 is no wind at ground level, and there usually is some wind above the ground, mechanical turbulence ...

62 AIR POLLUTION METEOROLOGY Estimating Concentration of Contaminants Given a source of contaminant and meteorological con- diti ...

AIR POLLUTION METEOROLOGY 63 102 102 103 104 101 103 104 4 x 100 2 105 2 5 5 2 5 2 5 102 103 3 x 103 101 100 2 2 5 2 2 5 5 (^252 ...

64 AIR POLLUTION METEOROLOGY An equation similar to (4) also exists for vertical spread- ing; however, it is theoretically less ...

AIR POLLUTION METEOROLOGY 65 layer varies with the size of the city, and depends on how long the air has moved over the city. In ...

66 AIR POLLUTION METEOROLOGY Day-to-day Variations in Air Pollution Equation (5) shows that, other things being equal, the con- ...

AIR POLLUTION METEOROLOGY 67 direction on the other, is that the wind direction has different effects at various sites, dependin ...

68 AIR POLLUTION METEOROLOGY in some of the factors affecting climate. Until such models are improved, then, we cannot really es ...

AIR POLLUTION METEOROLOGY 69 REFERENCES Briggs, G.A. (1969), Plume Rise. USAEC critical review series, TID- 25075, Clearinghous ...

70 AIR POLLUTION SOURCES Air pollution may be defined as the presence in the atmosphere of any substance (or combination of subs ...

AIR POLLUTION SOURCES 71 and eventually settle out great distances from the source. The very smallest particulates exhibit certa ...

72 AIR POLLUTION SOURCES pollutants (nitrogen dioxide, sulfur dioxide, hydrocarbons, carbon monoxide, particulate matter and ozo ...

AIR POLLUTION SOURCES 73 air quality is particularly poor, stricter operating requirements are imposed. NESHAP (National Emissi ...

74 AIR POLLUTION SOURCES The NSPS, SIP and NESHAP sources are further classified depending on their actual and potential emissio ...

Part 1. Pollutant Emissions (continued) Pollutant types Sources and abundance Abatement and control Oxygenated Hydrocarbons: Li ...