USGS Scientific Invesigations Report 2012–5068  - Reconnaissance of Contaminants in Selected Wastewater-Treatment-Plant Effluent and Stormwater Runoff Entering the Columbia River, Columbia River Basin, Washington and Oregon, 2008

Table A5. Reporting limits of polyaromatic hydrocarbons analyzed in unfiltered stormwater runoff, Columbia River Basin, Washington and Oregon, 2009–10. 

[Bold type indicates a detection in stormwater runoff in this study. CAS No.: Chemical Abstract Service Registry Number® is a Registered Trademark of the American Chemical Society. CAS recommends the verification of the CASRNs through CAS Client Services^SM. Abbreviation: µg/L, micrograms per liter]

Analyte	Parameter  code	CAS  No.	Reporting limit (µg/L)
Analyte	Parameter  code	CAS  No.	October 2008–  September 2009	October 2009–  September 2010
Acenaphthene	34205	83-32-9	0.28	0.28
Acenaphthylene	34200	208-96-8	0.3	0.3
Anthracene	34220	120-12-7	0.39	0.39
Benzo[a]anthracene	34526	56-55-3	0.26	0.26
Benzo[a]pyrene	34247	50-32-8	0.33	0.33
Benzo[b]fluoranthene	34230	205-99-2	0.4	0.3
Benzo[ghi]perylene	34521	191-24-2	0.4	0.38
Benzo[k]fluoranthene	34242	207-08-9	0.4	0.3
4-Bromophenylphenylether	34636	101-55-3	0.36	0.24
Butylbenzyl phthalate	34292	85-68-7	1.8	1.8
bis(2-Chloroethoxy)methane	34278	111-91-1	0.2	0.24
bis(2-Chloroethyl)ether	34273	111-44-4	0.3	0.3
bis(2-Chloroisopropyl) ether	34283	108-60-1	0.38	0.14
4-Chloro-3-methylphenol	34452	59-50-7	0.55	0.55
2-Chloronaphthalene	34581	91-58-7	0.2	0.16
2-Chlorophenol	34586	95-57-8	0.42	0.26
4-Chlorophenyl phenyl ether	34641	7005-72-3	0.34	0.34
Chrysene	34320	218-01-9	0.33	0.33
Dibenz[ah]anthracene	34556	53-70-3	0.4	0.42
1,2-Dichlorobenzene	34536	95-50-1	0.2	0.2
1,3-Dichlorobenzene	34566	541-73-1	0.2	0.22
1,4-Dichlorobenzene	34571	106-46-7	0.2	0.22
3,3′-Dichlorobenzidine	34631	91-94-1	0.4	0.42
2,4-Dichlorophenol	34601	120-83-2	0.39	0.36
Diethyl phthalate	34336	84-66-2	0.61	0.61
Dimethyl phthalate	34341	131-11-3	0.4	0.36
2,4-Dimethylphenol	34606	105-67-9	0.8	0.8
4,6-Dinitro-2-methylphenol	34657	534-52-1	0.77	0.76
2,4-Dinitrophenol	34616	51-28-5	1.4	1.4
2,4-Dinitrotoluene	34611	121-14-2	0.6	0.56
2,6-Dinitrotoluene	34626	606-20-2	0.43	0.4
1,2-Diphenylhydrazine	82626	122-66-7	0.3	0.3
Di-n-butyl phthalate	39110	84-74-2	1	2
Di-n-octyl phthalate	34596	117-84-0	0.6	0.6
bis(2-Ethylhexyl) phthalate	39100	117-81-7	2	2
Fluoranthene	34376	206-44-0	0.3	0.3
Fluorene	34381	86-73-7	0.33	0.33
Hexachlorobenzene	39700	118-74-1	0.3	0.3
Hexachlorobutadiene	39702	87-68-3	0.2	0.24
Hexachlorocyclopentadiene	34386	77-47-4	0.4	0.5
Hexachloroethane	34396	67-72-1	0.2	0.24
Indeno[1,2,3-cd]pyrene	34403	193-39-5	0.4	0.38
Isophorone	34408	78-59-1	0.4	0.26
Naphthalene	34696	91-20-3	0.32	0.22
Nitrobenzene	34447	98-95-3	0.2	0.26
2-Nitrophenol	34591	88-75-5	0.4	0.4
4-Nitrophenol	34646	100-02-7	0.51	0.51
N-Nitrosodimethylamine	34438	62-75-9	0.2	0.24
N-Nitrosodi-n-propylamine	34428	621-64-7	0.4	0.4
N-Nitrosodiphenylamine	34433	86-30-6	0.4	0.28
Pentachlorophenol	39032	87-86-5	1.2	0.6
Phenanthrene	34461	85-01-8	0.32	0.32
Phenol	34694	108-95-2	0.44	0.28
Pyrene	34469	129-00-0	0.35	0.35
1,2,4-Trichlorobenzene	34551	120-82-1	0.2	0.26
2,4,6-Trichlorophenol	34621	88-06-2	0.6	0.34

Reconnaissance of Contaminants in Selected Wastewater-Treatment-Plant Effluent and Stormwater Runoff Entering the Columbia River, Columbia River Basin, Washington and Oregon, 2008–10

Reconnaissance of Contaminants in Selected Wastewater-Treatment-Plant Effluent and Stormwater Runoff Entering the Columbia River, Columbia River Basin, Washington and Oregon, 2008–10 