| 유해성 요약 | There is inadequate evidence in humans for the carcinogenicity of nitrilotriacetic acid and its salts. [IARC] NTA complexes of mercury, cadmium, and nickel degrade more slowly than complexes of lead, zinc, and ironUndegraded NTA may accumulate in the environment[HSDB] See Copper. |
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| OSHA Standards | Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 1 mg/cu m. /Copper dusts and mists (as Cu)/ |
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| NIOSH Recommendations | Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 1 mg/cu m. /Copper (dusts and mists)/ |
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| 청정수법 요건 | Toxic pollutant designated pursuant to section 307(a)(1) of the Federal Water Pollution Control Act and is subject to effluent limitations. /Copper and cmpd/ |
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| 주 식수 지침 | (AZ) ARIZONA 1300 ug/l /Copper/ |
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| Federal Drinking Water Standards | EPA 1300 ug/l (Action Level) /Copper/ |
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| 연방 식수 지침 | EPA 1000 ug/l /Copper/ |
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| 노출 관리 및 개인 보호 | 0.01 [mg/m3], respirable fraction (Cu, inorganic cmpnds)[German Research Foundation (DFG)] |
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| 처리 방법 | SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices. |
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| Threshold Limit Values (TLV) | 1.0 [mg/m3], as Cu8 hr Time Weighted Avg (TWA): 1 mg/cu m /Copper dusts and mists, as Cu/Excursion Limit Recommendation: Excursions in worker exposure levels may exceed 3 times the TLV-TWA for no more than a total of 30 minutes during a work day, and under no circumstances should they exceed 5 times the TLV-TWA, provided that the TLV-TWA is not exceeded. /Copper dusts and mists, as Cu/ |
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| Permissible Exposure Limit (PEL) | 1.0 [mg/m3], as Cu |
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| Immediately Dangerous to Life or Health (IDLH) | 100.0 [mg/m3], as Cu |
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| 유해 작용 | Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation. |
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| Environmental Biodegradation | A NITRILOTRIACETATE (NTA)-DEGRADING PSEUDOMONAS SPECIES WAS SHOWN TO DEGRADE CA, MN, MG, CU, ZN, CD, FE, & NA CHELATES OF NTA @ NEARLY EQUAL RATES WHEN THE APPROPRIATE METAL CONCN ARE LOW ENOUGH TO AVOID TOXICITY FROM THE FREED METAL. |
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| Non-Human Toxicity Excerpts | TOXICITIES OF CU CHELATES WITH NTA & EDTA WERE 1-3 FOLD LESS THAN THAT OF UNCHELATED CU ION. |
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| Evidence for Carcinogenicity | Evaluation: There is inadequate evidence in humans for the carcinogenicity of nitrilotriacetic acid and its salts. There is sufficient evidence in experimental animals for the carcinogenicity of nitrilotriacetic acid and its sodium salts. Overall evaluation: Nitrilotriacetic acid and its salts are possibly carcinogenic in humans (Group 2B). /Nitrilotriacetic acid and its salts/ |
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