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TABLE 1
<br />Maximum Concentrations and Allowable Chemical Exposure Limits and Exposure Symptoms
<br />
<br />PEL (a)STEL (b)TLV (c)
<br />Soil
<br />(mg/kg)
<br />Groundwater
<br />(ug/L)(ppmv)(ppmv)(ppmv)
<br />Lathrop, California
<br />Former Pilkington North America Site
<br />ROUTE OF ENTRY TARGET ORGANSACUTE EXPOSURE SYMPTOMSCHEMICAL
<br />Maximum Concentrations
<br />Metals
<br />Antimony ----0.5
<br />mg/m3
<br />NL 0.5
<br />mg/m3
<br />Inhalation, ingestion,
<br />contact
<br />Irritation eyes, skin, nose, throat, mouth, coughing, dizziness,
<br />headache, nausea, vomiting, diarrhea, stomach cramps,
<br />insomnia, anorexia, unable to smell properly
<br /> Eyes, skin, respiratory system,
<br />central nervous, system
<br />Arsenic (inorganic
<br />compounds, as As)
<br />----0.01
<br />mg/m3
<br />NL 0.01
<br />mg/m3
<br />Inhalation, absorption,
<br />ingestion, contact
<br />Ulceration of nasal septum, dermatitis, gastrointestinal
<br />disturbances, peripheral neuropathy, respiratory
<br />irritation, hyperpigmentation of skin,
<br />(potential occupational carcinogen)
<br />Liver, kidneys, skin, lungs,
<br />lymphatic system,
<br />(lung and lymphatic cancer)
<br />Arsenic (organic
<br />compounds, as As)
<br />----0.2
<br />mg/m3
<br />NL NL Inhalation, ingestion,
<br />contact
<br />In animals: irritation of skin, possible dermatitis, respiratory
<br />distress, diarrhea, kidney damage, muscle tremor, seizure,
<br />possible gastrointestinal tract, teratogenic,
<br />reproductive effects, possible liver damage
<br />Skin, respiratory system, kidneys,
<br />central nervous system, liver,
<br />gastrointestinal tract,
<br />reproductive system
<br />Arsine ----0.05 NL 0.005 Inhalation, contact (liq)Headache, nausea, malaise, weakness, dizziness, vomiting,
<br />dyspnea, abdominal and back pain, bronze skin, hematuria,
<br />peripheral neuropathy, lung and lymphatic cancer
<br />Blood, kidneys, liver, lung and
<br />lymphatic system
<br />Barium (soluble
<br />compounds, as Ba)
<br />----0.5
<br />mg/m3
<br />NL 0.5
<br />mg/m3
<br />Inhalation, ingestion,
<br />contact
<br />Irritation eyes, skin, upper respiratory system, skin burns,
<br />gastroenteritis, muscle spasm, slow pulse, extra systoles,
<br />hypokalemia
<br />Eyes, skin, respiratory system,
<br />heart, central nervous system
<br />Beryllium and Be
<br />compounds
<br />----0.0002
<br />mg/m3
<br />NL 0.00005
<br />mg/m3
<br />Inhalation, contact Berylliosis (chronic exposure), anorexia, low weight,
<br />weakness, chest pain, cough, clubbing of fingers,
<br />cyanosis, pulmonary insufficiency, irritation of eyes,
<br />dermatitis, (potential occupational carcinogen)
<br />Eyes, skin, respiratory system
<br />(lung cancer)
<br />Cadmium, metal dust,
<br />soluble salts, as Cd
<br />----0.005
<br />mg/m3
<br />NL 0.002
<br />mg/m3
<br />Inhalation, ingestion Pulmonary edema, dyspnea, cough, chest tightness,
<br />substernal pain, headache, chills, muscle aches,
<br />nausea, vomiting, diarrhea, anosmia, emphysema,
<br />proteinuria, mild anemia,
<br />(potential occupational carcinogen)
<br /> Respiratory system, kidneys,
<br />prostate, blood, prostate
<br />and lung cancer
<br />Chromium (II) and
<br /> (III) compounds
<br />----0.5
<br />mg/m3
<br />NL 0.5
<br />mg/m3
<br />Inhalation, ingestion,
<br />contact
<br />Irritation eyes, sensitization dermatitis Eyes, skin
<br />Chromium metal,
<br />as Cr
<br />----0.5
<br />mg/m3
<br />NL 0.5
<br />mg/m3
<br />Inhalation, ingestion,
<br />contact
<br />Irritation eyes, skin, lung fibrosis (histologic)Eyes, skin, respiratory system
<br />Chromium (VI)
<br />compounds, water
<br />soluble
<br />----0.005
<br />mg/m3
<br />NL 0.05
<br />mg/m3
<br />Inhalation, ingestion,
<br />contact
<br />Respiratory system irritation, nasal septum perforation, liver,
<br />kidney damage, increased leukocytes, leukopenia,
<br />monocytosis, skin ulcer, sensitive skin, carcinogenic
<br />NL
<br />EKI B90047.00 Page 6 of 9 EKI Environment & Water, Inc.
<br />May 2019
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