What is the Cal OSHA permissible exposure limit for Trichloroethylene?
|OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak||CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak|
|PEL-TWA||100 ppm||25 ppm (135 mg/m³)|
|PEL-STEL||100 ppm (537 mg/m³)|
|PEL-C||200 ppm; 300 ppm (Peak), for a single time period up to 5 min in any 2 hours||300 ppm|
What is the OSHA PEL for toluene?
OSHA: The legal airborne permissible exposure limit (PEL) is 200 ppm averaged over an 8-hour workshift, 300 ppm not to be exceeded during any 15-minute work period, and 500 ppm as a 10-minute acceptable maximum peak during an 8-hr workshift.
What is niosh REL?
Recommended exposure limit (REL) is the name used by the US National Institute for Occupational Safety and Health (NIOSH) for the occupational exposure limits (OELs) it recommends to protect workers from hazardous substances and conditions in the workplace. RELs are not regulations.
What is the most effective way of limiting occupational radiation exposure?
The ALARA (as low as reasonably possible) principle is a widely used and effective method of controlling exposure to radioactive material. ALARA represents the concept of limiting employee radiation exposure to levels as low as possible.
What is an 8 hour TWA?
“TWA is the employee’s average airborne exposure in any 8-hour work shift of a 40-hour work week which shall not be exceeded.” The 8-hour TWA PEL is the level of exposure established as the highest level of exposure an employee may be exposed to without incurring the risk of adverse health effects.
Is methylene chloride a human carcinogen?
Because methylene chloride has been shown to induce increased numbers of benign and malignant neoplasms in rats and mice, it meets the criteria provided in the OSHA Cancer Policy for classifying a substance as a potential occupational carcinogen; therefore, NIOSH recommends that methylene chloride be considered a …
What is the PEL for arsenic?
► Exposure to Arsenic can cause weakness, poor appetite, nausea, vomiting, headache, and even death. powder form it can EXPLODE when exposed to heat, flame or hot surfaces. OSHA: The legal airborne permissible exposure limit (PEL) is 0.01 mg/m3 averaged over an 8-hour workshift.
How do you test for toluene exposure?
Hippuric acid, a breakdown product of toluene, can be measured in urine if the toluene dose was high. If a severe exposure has occurred, blood and urine analyses and other tests may show whether the brain, heart, or kidneys have been injured. Testing is not needed in every case.
Why is toluene bad for humans?
Exposure to toluene can cause eye and nose irritation, tiredness, confusion, euphoria, dizziness, headache, dilated pupils, tears, anxiety, muscle fatigue, insomnia, nerve damage, inflammation of the skin, and liver and kidney damage. Workers may be harmed from exposure to toluene. Toluene is used in many industries.
What is an example of a chronic response to chemical exposure?
A chronic health effect is an adverse health effect resulting from long-term exposure to a substance. Symptoms do not usually subside when the exposure stops. Examples of chronic health effects include asthma and cancer.
What is the niosh recommended exposure limit?
The recommended exposure limit (REL) proposed by the National Institute for Occupational Safety and Health (NIOSH) is 85 decibels as an 8 hour time-weighted average.
What are the dangers of exposure to ethyl mercaptan?
* Ethyl Mercaptan may damage the liver and kidneys. * Repeated or long term exposure to Ethyl Mercaptan may damage the red blood cells causing anemia. * Ethyl Mercaptan is a HIGHLY FLAMMABLE LIQUID or GAS and a DANGEROUS FIRE HAZARD.
What is the odor of ethyl mercaptan gas?
* Ethyl Mercaptan is a HIGHLY FLAMMABLE LIQUID or GAS and a DANGEROUS FIRE HAZARD. Ethyl Mercaptan is a colorless or yellowish liquid or a gas with a pungent, garlic or skunk-like odor. It is used as an additive to odorless gases like butane, propane, and petroleum to give them a warning odor.
Where are people most likely to be exposed to mercaptan?
Workers in sewage treatment plants, pulp mills, chemical plants, and industrial or agricultural settings where chemical or microbiological formation of mercaptan is significant would potentially have a higher-than- normal exposure to this compound.
Where can methyl mercaptan be found in the air?
Methyl mercaptan is always present in your body and in your urine and feces. It can also be present in the breath of persons with liver damage. You can be exposed to methyl mercaptan in the air if you live near a natural source of this gas, such as a marsh, an underground gas pocket, or a dump site that releases it.