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<br />41 <br /> <br />Table 4-4 <br />Assessment of Chemical Hazards <br />Chemical Name* (or <br />class) <br /> <br />TWA Other Pertinent <br />Limits* <br />(Specify) <br />Physical <br />Properties <br /> <br />Exposure Routes <br />Symptoms <br />Target Organs <br />1. TPH-g <br />100 mg/m3 Not Established Clear yellow, <br />brown <br />combustible <br />liquid; floats on <br />water; distinct <br />petroleum <br />hydrocarbon <br />odor. <br />Inhalation, <br />ingestion, skin <br />and/or eye <br />contact <br />Irritation of eyes, skin, <br />respiratory tract; dizziness, <br />headache, nausea; chemical <br />pneumonitis (from aspiration of <br />liquid); dry, red skin; irritant <br />contact dermatitis; eye redness, <br />pain <br />Skin, kidneys, liver, eyes <br />2. TPH-d 100 mg/m3 Not Established Clear yellow, <br />brown <br />combustible <br />liquid; floats on <br />water; distinct <br />diesel petroleum <br />hydrocarbon <br />odor. <br />Inhalation, <br />ingestion, skin <br />and/or eye <br />contact <br />Irritation of eyes, skin, <br />respiratory tract; dizziness, <br />headache, nausea; chemical <br />pneumonitis (from aspiration of <br />liquid); dry, red skin; irritant <br />contact dermatitis; eye redness, <br />pain <br />Skin, kidneys, liver, eyes <br />3. Asbestos <br />0.1 fiber of <br />asbestos per cubic <br />centimeter of air <br />An excursion limit <br />of 1.0 asbestos <br />fibers per cubic <br />centimeter over 30 <br />minutes. <br />Fibers Inhalation Shortness of Breath, Swollen <br />Fingertips, Fatigue, Persistent Dry <br />Cough, wheezing <br />Lungs <br /> <br /> (NIOSH) <br />