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Site Specific Health, Safety and Environmental Plan <br /> 15 <br />Compound Physical/Chemical Characteristics <br />(Target Organs/ Route of Entry) <br />OEL <br />(STEL) <br />Odor <br />Threshold <br />LEL <br />(%) <br />IP <br />(eV) <br /> <br />1 ppm = 1.49 mg/m3 <br />human tissues, damages mucous <br />membranes, skin, and the eyes. <br />IDLH: 50 ppm <br />Methanol <br />(Methyl alcohol) <br />(67-56-1) <br /> <br />1 ppm = 1.31 mg/m3 <br />Exposure routes via inhalation, skin <br />absorption, ingestion, skin and/or eye <br />contact. Irritant of eyes, skin and upper <br />respiratory system. Defatting of the skin; <br />optic nerve damage, blindness; narcosis, <br />nausea, and headache. This substance may <br />also be toxic to blood, kidneys, liver, brain, <br />peripheral nervous system, upper respiratory <br />tract, skin and central nervous system. <br />200 ppm <br />(250 ppm) <br />Skin <br /> IDLH: 6000 <br />ppm <br />Variable <br />depending <br />upon <br />purity (10 <br />to 20,000 <br />ppm) <br />6.0 10.84 <br />Nitric Acid <br />(7697-37-2) <br />1 ppm = 2.58 mg/m3 <br />Exposure routes via inhalation, ingestion, <br />skin and/or eye contact. A severe corrosive <br />agent to all body tissues; permanent <br />blindness can result from eye contact; <br />inhalation produces pulmonary edema, <br />bronchitis, and dental erosion. Releases <br />Hydrogen gas in contact with metals; reacts <br />violently with bases and wood, paper, <br />sawdust; explosive reactivity with hydrogen <br />sulfide and turpentine; degradation can <br />produce toxic nitrous oxide. <br />2 ppm TWA <br />(4 ppm) <br /> <br />IDLH: 25 ppm <br />62 ppm NA 11.95 <br />Sodium Hydroxide <br />(NaOH, Caustic Soda) <br />(1310-73-2) <br />Eye, skin and mucous member hazard <br />(irritant in low concentrations and can cause <br />eye and skin burns at higher concentrations). <br />Colorless to white, odorless solid (flakes, <br />beads, granular forms). Incompatible and <br />reactive with acids, flammable liquids, <br />organic halogens, and metals such as <br />aluminum, tin and zinc. It does not form a <br />vapor, but NaOH dust can irritate the eyes <br />and nasal passages. <br />2 mg/m3 TWA <br /> <br />IDLH: 10 <br />mg/m3 <br />N/A N/A N/A <br />OEL – Occupational Exposure Limit STEL – Short Term Exposure Limit (usually 15-minutes) LEL – Lower Explosive Limit <br />IP – Ionization Potential eV – electron volt TWA- Time Weight Average C – Ceiling limit (concentration that cannot be <br />exceeded at any time [or for indicated time frame]) IDHL- Immediate Danger to Life or Health concentration <br />Ca – Known or Suspected human carcinogen Skin – indicates significant exposure risk from skin exposure <br /> <br />4.2 Air Monitoring Action Levels for Field Activities <br /> <br /> <br />Task <br />Monitoring <br />Instrument <br />Monitoring <br />Frequency <br />Action Levels 1 Required Action <br />FID or PID meter use when Benzene and/or Vinyl Chloride are not anticipated to be a contaminant of concern. <br />Formatted: Font color: Auto