Environmental Engineering Reference
In-Depth Information
TABLE 16.2
Principal.Chemicals.of.Interest.at.Gasworks.Sites
Monocyclic
Aromatic
Hydrocarbons
Polycyclic
Aromatic
Hydrocarbons
Inorganic
Compounds
Metalsand
Metalloids
Phenolics
Ammonia
Aluminum
Benzene
Phenol
Acenaphthene
Cyanide
Antimony
Ethyl.benzene
2-Methylphenol
Acenaphthylene
Nitrate
Arsenic
Toluene
4-Methylphenol
Anthracene
Sulfate
Barium
Total.xylenes
2,4-Dimethylphenol
Benzo(a)anthracene
Sulide
Cd
Benzo(a)pyrene
Thiocyanate
Chromium
Benzo(b)
luoranthene
Copper
Benzo(g,h,i)
perylene
Iron
Benzo(k)
luoranthene
Pb
Chrysene
Manganese
Dibenzo(a,h)
anthracene
Mercury
Fluoranthene
Nickel
Fluorene
Selenium
Naphthalene
Silver
Phenanthrene
Vanadium
Pyrene
Zn
Indeno.(1,2,3-cd).
pyrene
Source:
.
New.South.Wales.Environmental.Protection.Agency.(NSW.EPA),.Information.about.
assessing.gasworks.sites,.Department.of.Environment.and.Conservation,.New.South.
Wales,. Australia,. http://www.environment.nsw.gov.au/clm/gasworksassessment.
html,.2005.
the.waste.and.contaminate.groundwater.and.subsurface.soil..The.mobility.
of. inorganic. contaminants. depends. heavily. on. their. solubility,. and. factors.
such.as.pH.and.presence.of.other.chemical.species.affect.the.solubility.and.
binding.of.contaminants.to.the.soil..Shallow.soil.contamination.by.inorganic.
compounds.can.be.extensive.at.the.former.gasworks.sites.(NSW.EPA.2005,.
US. EPA. 2004).. However,. deeper. contamination. can. be. variable,. depending.
on. the. volume. and. mobility. of. the. source. and. the. presence. of. preferential.
migration.pathways.(Thomas.and.Lester.1994).
PAHs and Metals as Mixed Contaminants
By. far,. two. of. the. most. abundant. environmental. pollutants. found. in. large.
number. of. contaminated. sites. are. PAHs. and. heavy. metals. such. as. cad-
mium,.lead,.zinc,.chromium,.copper,.and.arsenic.(Fischer.et.al..1999)..Heavy.
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