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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 />Volatile Organic Compounds (VOCs)
<br />n-Propylbenzene ----NL NL NL NL NL NL
<br />Tetrachloroethene ----25 100 25 Inhalation, absorption,
<br />ingestion, contact
<br />Irritation of eyes, nose, throat, nausea, flushing of the face,
<br />neck, dizziness, incoherence, headache, somnolence,
<br />skin erythema, liver damage,
<br />(potential occupational carcinogen)
<br />Eyes, skin, respiratory system,
<br />liver, kidneys, central nervous
<br />system, (in animals: liver tumors)
<br />Toluene --10.5 10 NL 20 Inhalation, absorption,
<br />ingestion, contact
<br />Irritated eyes, nose, fatigue, weakness, confusion, euphoria,
<br />dizziness, headache, dilated pupils, lacrimation, nervousness,
<br />muscle fatigue, insomnia, paresthesia, dermatitis, liver,
<br />kidney damage kidney damage
<br />Eyes, skin, respiratory system,
<br />central nervous system, liver,
<br />kidneys
<br />1,1,1-Trichloroethane
<br />(1,1,1-TCA,
<br />methyl chloroform)
<br />----350 450 350 Inhalation, ingestion,
<br />skin and/or eye contact
<br />Irritation eyes, skin, headache, lassitude (weakness,
<br />exhaustion), central nervous system depression,
<br />poor equilibrium, dermatitis, cardiac arrhythmias,
<br />liver damage
<br />Eyes, skin, central nervous
<br />system, cardiovascular system,
<br />liver
<br />Trichloroethene ----25 25 10 Inhalation, absorption,
<br />ingestion, contact
<br />Irritated eyes, skin, headache, vertigo, visual disturbance,
<br />fatigue, giddiness, tremor, somnolence, nausea, vomiting,
<br />dermatitis, cardiac arrhythmias, paresthesia, liver injury,
<br />(potential occupational carcinogen)
<br />Eyes, skin, respiratory system,
<br />heart, liver, central nervous
<br />system, (in animals: liver and
<br />kidney cancer)
<br />Trichlorofluoromethane ----1,000 1,000
<br />Ceiling
<br />NL Inhalation, ingestion,
<br />contact
<br />Incoordination, tremor, cardiac arrhythmias, cardiac arrest,
<br />asphyxia, frostbite
<br />Skin, respiratory system,
<br />cardiovascular system
<br />1,2,4-Trimethylbenzene ----NL NL 25 Inhalation, ingestion,
<br />contact
<br />Irritation eyes, skin, nose, throat, respiratory system,
<br />bronchitis, hypochromic anemia, headache drowsiness,
<br />fatigue, dizziness, nausea, incoordination, vomiting,
<br />confusion, chemical pneumonia, (aspiration liquid)
<br />Eyes, skin, respiratory system,
<br />central nervous system, blood
<br />1,3,5-Trimethylbenzene ----NL NL 25 Inhalation, ingestion,
<br />contact
<br />Irritation eyes, skin, nose, throat, respiratory system,
<br />bronchitis, hypochromic anemia, headache drowsiness,
<br />fatigue, dizziness, nausea, incoordination, vomiting,
<br />confusion, chemical pneumonia, (aspiration liquid)
<br />Eyes, skin, respiratory system,
<br />central nervous system, blood
<br />Vinyl chloride ----1 NL 1 Inhalation, contact,
<br />liquid
<br />Weakness, abdominal pain, gastrointestinal bleeding,
<br />enlarged liver, pallor or cyanosis of extremities, liquid,
<br />frostbite, (potential occupational carcinogen)
<br />Liver, central nervous system,
<br />blood, respiratory system,
<br />lymphatic system, liver cancer
<br />Xylenes --10.1 100 150 100 Inhalation, absorption,
<br />ingestion, contact
<br />Irritation eyes, skin, nose, throat, dizziness, excitement,
<br />drowsiness, incoherence, staggering gait, corneal
<br />vacuolization, anorexia, nausea, vomiting, abdominal pain,
<br />dermatitis
<br />Eyes, skin, respiratory system,
<br />central nervous system,
<br />gastrointestinal tract, blood,
<br />liver, kidneys
<br />EKI B90047.00 Page 3 of 9 EKI Environment & Water, Inc.
<br />May 2019
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