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pectrum Laboratories : Chemical Fact Sheet-r # 100414 httr•1iwww.speclab.com/compound/c100414.htm
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<br /> DRINKING WATER: In surveys of representative US municipal water supplies, ethylbenzene has
<br /> been detected in most cases(1,2,4-8,10).Values for 3 New Orleans finished drinking waters ranged
<br /> 1.6 to 2.3 ppb(6). Chicago Central Water Works on Lake Michigan measured 4 ppb(8). It has been
<br /> found in the water supply for Evansville,IN on the Ohio River(7). 6 of 10 US cities were found to
<br /> be positive(1,4).One US city had 1 of 4 samples pos with a 1 ppb avg,while another reported no
<br /> � positive samples .Tap water from bank infiltrated Rhine River water in the Netherlands measured
<br /> 30 ppb in one study.Zurich, Switzerland tap water- detected not quantified(9). 1982 US
<br /> groundwater supply survey,random samples of finished water supplies using groundwater as a
<br /> ,W source,466 random samples, 0.6%,pos(0.5 ppb detection limit),0.8 ppb median, 1.1 ppb
<br /> max(10).GROUNDWATER:A well in Ames,IA measured 15 ppb 50 yr after tar residues were
<br /> buried at a nearby coal gas plant.Concns of 82-400 ppb were detected in two aquifers near the
<br /> Hoe Creek underground coal gasification site in Wyoming, 15 mo after gasification was complete .
<br /> 4'0 In a US survey, 1970-76, it was detected but not quantified in well waters . In Jackson Township,
<br /> NJ, drinking water wells measured 2000 ppb.Chalk aquifer in East Anglia,England-210 in from
<br /> petroleum storage-0.15 ppb, 10 in distance- 1110 ppb,and 100-200 m-<250 ppb. SURFACE
<br /> " WATER:Ethylbenzene has been detected but not quantified in a 1970-76 US survey(1,4). 14
<br /> heavily industrialized US river basins,5 of 204 sites pos- 1-4 ppb;Chicago area and Illinois River
<br /> Drinking Water' Basin,5 of 31 sites pos- 1-4 ppb(6).Two representative US cities,city A-41%of 28 samples pos,
<br /> Impact 5.0 ppb avg,city B-40%of 48 samples pos 3.2 ppb avg .Lower Tennessee River near Calvert
<br /> City,KY reported 4.0 ppb(7).Lake Michigan,Chicago Sanitary and Ship Channel measured 1-2
<br /> ppb.River Glatt, Switzerland-detected,not quantified. USEPA STORET database, 1,101 data
<br /> points, 10%pos,<5.0 ppb median(8). SEAWATER: Gulf of Mexico,unpolluted areas-0.4 to 5
<br /> ppb(1,3),while an area of anthropogenic influence ranged from 5 to 15 ppb .Cape Cod,MA
<br /> measured a trace to 22 ppb(2,4)with 11 ppb avg.Concn(parts/trillion)Dutch North Sea coastal
<br /> waters, 108 samples, not detected(<5)-20,avg 4 .RAIN WATER: West Los Angeles,CA-9
<br /> parts/trillion .Concn(parts/trillion)dissolved in rain,Portland,OR,Feb-April 1984,7 rain events,
<br /> 100%pos,6.9-72,34 avg.EFFL:Industries with mean raw wastewater concentrations>2000 ppb:
<br /> gum and wood chemicals (11,000 ppb),pharmaceutical manufacturing(10,000 ppb),paint and ink
<br /> formulation,and auto and other laundries . Effluents from representative water treatment plants in
<br /> Southern California were variable<10 ppb at San Diego City to 130 ppb at Los Angeles Co(both
<br /> measurements following primary treatment);<10 ppb detected following secondary treatment. In
<br /> a US city survey, 17%of 6 samples were positive,6.0 ppb avg,Lake Michigan,North Side
<br /> sewage treatment plant- 1 ppb .USEPA STORET database, 1,368 data points,7.4%pos,<3.0 ppb
<br /> median.MN municipal solid waste landfills, leachates,6 sites, 100%pos, 12-820 ppb,
<br /> contaminated groundwater(by inorganic indices), 13 sites,61.5%pos, 1.2-590 ppb,other
<br /> groundwater(apparently not contaminated as indicated by inorganic indices),7 sites, 14.3%pos,
<br /> w 9.4 ppb avg(6).
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