enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Phosgene - Wikipedia

    en.wikipedia.org/wiki/Phosgene

    The odor detection threshold for phosgene is 0.4 ppm, four times the threshold limit value (time weighted average). Its high toxicity arises from the action of the phosgene on the −OH , −NH 2 and −SH groups of the proteins in pulmonary alveoli (the site of gas exchange), respectively forming ester, amide and thioester functional groups in ...

  3. List of highly toxic gases - Wikipedia

    en.wikipedia.org/wiki/List_of_highly_toxic_gases

    Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.

  4. National Emissions Standards for Hazardous Air Pollutants

    en.wikipedia.org/wiki/National_Emissions...

    The National Emission Standards for Hazardous Air Pollutants (NESHAP) are air pollution standards issued by the United States Environmental Protection Agency (EPA). The standards, authorized by the Clean Air Act, are for pollutants not covered by the National Ambient Air Quality Standards (NAAQS) that may cause an increase in fatalities or in serious, irreversible, or incapacitating illness.

  5. Permissible exposure limit - Wikipedia

    en.wikipedia.org/wiki/Permissible_exposure_limit

    Threshold Limit Values (TLVs), often determined by the American Conference of Governmental Industrial Hygienists (ACGHI), is a key component in determining the PEL. [11] [10] Other things that contribute to determining the PEL are toxicity and particle size. [10] PELs for chemicals are measured in mg/M 3 (milligrams per cubic meter). [2]

  6. Traces of toxic gas found during evacuation of Swedish ... - AOL

    www.aol.com/news/traces-toxic-gas-found-during...

    Traces of a toxic, colorless gas were found at the headquarters of Sweden’s security agency where a suspected gas leak last week forced authorities to evacuate some 500 people from the facility ...

  7. Proximity to point sources of environmental mercury release ...

    images.huffingtonpost.com/2009-01-29-Palmer2008.pdf

    Health & Place ] (]]]]) ]]]–]]] Proximity to point sources of environmental mercury release as a predictor of autism prevalence Raymond F. Palmera,, Stephen Blanchardb, Robert Wooda

  8. Acute Exposure Guideline Levels - Wikipedia

    en.wikipedia.org/wiki/Acute_Exposure_Guideline...

    Second, as one moves from shorter exposures to longer (left to right in the same row), the overall concentration allowed decreases due to the effects of cumulative dose. This is not always the case for AEGL-1 values, however, since they represent a threshold for non-disabling outcomes and sometimes only depend on air concentration. [3]

  9. Inflation report poses test for stocks rally as Fed meeting looms

    www.aol.com/news/inflation-report-poses-test...

    An inflation report in the coming week will test the strength of the record-setting U.S. stocks rally and provide a crucial piece of data that could factor into the Federal Reserve's plans for ...