Damage short term

Onsite fatality or less than 4 permanent disabling worker injuries. Property damage 50 to 200 times base level. Serious environmental impact (Cleanup or remediation requires three to six months and moderate impact on food chain, terrestrial life and/or aquatic life). Loss of production up from 50 to 200 times base level. Significant offsite impact property damage, short term health effects to the public or temporary disabling injuries. Significant public concern or reaction. 

The effects of dmgs and adjuvants must be assessed, both in short-term administration and during chronic treatment. Local effects include changes in mucocihary clearance, cell damage, and irritation. Chronic erosion of the mucous membrane may lead to inflammation, hyperplasia, metaplasia, and deterioration of normal nasal function (76). 

Short-term exposure limit (STEL) TLV - the eoneentration to whieh it is believed that workers ean be exposed eontinuously for a short period of time without suffering from initation, ehronie or irreversible tissue damage, or nareosis of suffieient degree to inerease the likelihood of aeeidental injury, impair self-reseue or materially reduee work effieieney, and provided that the daily TWA limit is not exeeeded. A STEL is a 15 min TWA exposure whieh should not be exeeeded at any time during the work day even if the TWA is within the TLV. It should not oeeur more than four times per day or without at least one hour between sueeessive exposures. 

The long-term OES is 50 ppm (8 hr TWA), set to protect against CNS effects, which will also protect against liver or kidney damage and initation. The short-term OES is 1000 ppm (15 minute reference period) to minimize exposures at initant levels. 

The main objective of air quality guidelines and standards is the protection of human health. Since fme particulates (PM,) are more likely to cause adverse health effects than coarse particulates, guidelines and standards referring to fine particulate concentrations are preferred to those referring to TSP, which includes coarse particulate concentrations. Scientific studies provide ample evidence of the relationship between exposure to short-term and long-term ambient particulate concentrations and human mortality and morbidity effects. However, the dose-response mechanism is not yet fully understood. Furthermore, according to the WHO, there is no safe threshold level below which health damage does not occur. 

Besides short-term impacts, the potential for irreversible damage to the lungs from... 

Since no specific antidotes are known, symptomatic therapy must be accompanied by complete rest. Toxicity by Inhalation (ThresholdUmit Value)-. 0.5 mg/m Short-Term Exposure Limits 2 mg/m for 30 min Toxicity by Ingestion oral LD, = 283 mg/kg (rat) Late Toxicity Possible liver damage loss of appetite or weight. Vapor (Gas) Irritant Characteristics No data Liquid or Solid Irritant Characteristics No data Odor Threshold No data. 

Health Hazards Information - Recommended Personal Protective Equipment Individual breathing devices with air supply neoprene gloves protective clothing eye protection Symptoms Following Exposure Inhalation of concentrated gas will cause suffocation. Contact will liquid can damage eyes because of low temperature. Frostbite may result from contact with liquid General Treatment for Exposure INHALATION remove to fresh air use artificial respiration if necessary. EYES get medical attention promptly if liquid has entered eyes. SKIN soak in lukewarm water (for frostbite) Toxicity by Inhalation (Threshold Limit Value) Data not available Short-Term Exposure Limits Data not available Toxicity by Ingestion Not pertinent (boils at -24.7°C) Late Toxicity Data not available Vtqtor (Gas) Irritant Characteristics Data not available Liquid or Solid Irritant Characteristics Data not available Odor Threshold Data not available. 

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