Offensive odors may be detected in areas adjacent to industries, and vary
according to the type of industries involved. Some examples of industrial
sources of malodors include:
pulp mills, which release hydrogen sulfide (H 2 S), causing ‘‘rotten-egg’’ type
odors
oil refineries, due to H 2 S and mercaptans
some chemical plants, due mainly to use of aniline or organic solvents
food processing plants
iron and metal smelters, which emit acidic smells
phosphate fertilizer manufacturing plants
Occurrence of Toxicants
33
[16:54 26/8/04 P:/CRC PRESS/4365 MING-HO.751 (1670)/4365-003.3d]
Ref: 4365 MING-HO YU Chap-003 Page: 33 31-44
FIGURE 3.1 Smog development in Shen-Chen, China: (a) clear morning, and (b) afternoon smog.
according to the type of industries involved. Some examples of industrial
sources of malodors include:
pulp mills, which release hydrogen sulfide (H 2 S), causing ‘‘rotten-egg’’ type
odors
oil refineries, due to H 2 S and mercaptans
some chemical plants, due mainly to use of aniline or organic solvents
food processing plants
iron and metal smelters, which emit acidic smells
phosphate fertilizer manufacturing plants
Occurrence of Toxicants
33
[16:54 26/8/04 P:/CRC PRESS/4365 MING-HO.751 (1670)/4365-003.3d]
Ref: 4365 MING-HO YU Chap-003 Page: 33 31-44
FIGURE 3.1 Smog development in Shen-Chen, China: (a) clear morning, and (b) afternoon smog.