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| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| stevie | " @stevie has marked ramseysprague as a co-author. " | Read more » | about 5 years ago | |||
| gretchengehrke | "Yes! Pennsylvania is actually one of the few states that does have ambient air quality standards for hydrogen sulfide! Read more here: https://publ..." | Read more » | almost 6 years ago | |||
| gretchengehrke | "Yes, OSHA does regulate workplace exposure to hydrogen sulfide. The OSHA "ceiling" exposure limit is 20 ppm, though NIOSH- the federal research ins..." | Read more » | almost 6 years ago | |||
| gretchengehrke | "In the United States, hydrogen sulfide is not considered a "criteria pollutant" or a hazardous air pollutant. Thus, there are no federal ambient ai..." | Read more » | almost 6 years ago | |||
| stevie | "RE:: @DavidMack posting your resource as an answer to the question. Thanks for sharing:: see "Guidelines for FRM and FEM Applicants 9-2011 (PDF)" ..." | Read more » | over 6 years ago | |||
| necisuperiorenzymes | "This whitepaper explains how methods become Clean Water Act methods for wastewater analysis under the US EPA. " | Read more » | almost 7 years ago | |||
| necisuperiorenzymes | "The NELAC Institute has a lot of information on regulatory methods for environmental monitoring. http://lams.nelac-institute.org/test_methods NEC..." | Read more » | almost 7 years ago | |||
| DavidMack | "@liz see "Guidelines for FRM and FEM Applicants 9-2011 (PDF)" on https://www3.epa.gov/ttn/amtic/criteria.html " | Read more » | almost 7 years ago | |||
| liz | "I would like to have the information that Rachelle Duvall referred to on the OpenHour, about the standards and testing that usually companies have ..." | Read more » | almost 7 years ago | |||
| xose | "The to be or not to be of the hole question ;) Theres an actual debate around your question and some of the PublicLab people are writing some posts..." | Read more » | almost 7 years ago |