{"id":3141,"date":"2013-05-21T18:05:26","date_gmt":"2013-05-21T18:05:26","guid":{"rendered":"http:\/\/sentryair.com\/blog\/?p=3141"},"modified":"2020-06-24T17:20:10","modified_gmt":"2020-06-24T17:20:10","slug":"workplace-engineering-control-for-sulphur-dioxide-an-acid-gas","status":"publish","type":"post","link":"https:\/\/www.sentryair.com\/blog\/industry-applications\/chemical-solvents\/workplace-engineering-control-for-sulphur-dioxide-an-acid-gas\/","title":{"rendered":"Workplace engineering control for sulphur dioxide, an acid gas"},"content":{"rendered":"

Sulphur dioxide [also called sulfur dioxide and SO2<\/sup>] is a colorless gas or liquid with a strong odor.<\/p>\n\"\"<\/a>\n

\n

It can be produced by the burning of coal, the source of most sulphur dioxide released into the environment.2<\/sup><\/p>\n

Because it can be inhaled in the general environment, much of the research on sulphur dioxide\u2019s effect is concerned with people who have asthma.<\/p>\n

Limited occupational studies<\/strong><\/p>\n

Information on SO2<\/sup> toxicity frequently relates to the effect of peak air pollution episodes rather than the long-term exposure that might be experienced by a worker.1<\/sup><\/p>\n

However, SO2<\/sup> is a hazard found in many and varied workplaces. Case reports cited in the SO2<\/sup> recommendation by the Scientific Committee on Occupational Exposure Limits included paper manufacture, smelters and steel mills, aluminum manufacture, carpentry, maintenance, mining, refrigerant manufacture and wine making.1<\/sup><\/p>\n

SO2<\/sup><\/strong> toxicity\u00a0<\/strong><\/p>\n

SO2<\/sup> can affect the body if it is inhaled or comes into contact with the eyes or skin. It may cause severe breathing difficulties and may cause a person to stop breathing. Exposure of the eyes can cause a loss of vision.3<\/sup><\/p>\n

SO2<\/sup> rapidly forms sulfurous acid on contact with moist membranes of the human body. High concentrations may lead to paralysis of the respiratory system and fluid accumulation in the lungs, known as pulmonary edema.<\/p>\n

If exposure is combined with certain particulates, the negative effects of SO2<\/sup> can be increased.3<\/sup><\/p>\n

SO2<\/sup> has not been found to cause cancer in humans.3<\/sup><\/p>\n

Permissible exposure limit (PEL)<\/strong><\/p>\n

NIOSH recommends workers\u2019 exposure to SO2<\/sup> be limited to 2\u00a0ppm (parts per million) (5\u00a0mg\/m3<\/sup>) TWA (time weighted average) over an 8-hour shift.<\/p>\n

For short periods of time, the recommended exposure limit varies:5<\/sup><\/p>\n

\n\n\n\n\n\n\n\n
\n

Emergency Exposure Guidance Level [EEGL], expressed as a span of time<\/strong><\/p>\n<\/td>\n

\n

SO2<\/sup> ppm<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

10 minutes<\/p>\n<\/td>\n

\n

30<\/p>\n<\/td>\n<\/tr>\n

\n

30 minutes<\/p>\n<\/td>\n

\n

20<\/p>\n<\/td>\n<\/tr>\n

\n

60 minutes<\/p>\n<\/td>\n

\n

10<\/p>\n<\/td>\n<\/tr>\n

\n

24 hours<\/p>\n<\/td>\n

\n

\u00a0 5<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\n

Contact us<\/strong><\/p>\n

For information on acid gas filtration options for your chemical process, give us a call at\u00a01.800.799.4609<\/strong>, email us at\u00a0sales@sentryair.com<\/a><\/strong>, or\u00a0fill out this online form<\/a>\u00a0to have a Sentry Air Systems Applications Specialist contact you to discuss your process.<\/p>\n

Resources<\/strong><\/p>\n

1<\/sup>Recommendation from the Scientific Committee on Occupational Exposure Limits for Sulphur Dioxide, updated December 2009http:\/\/ec.europa.eu\/social\/BlobServlet?docId=6410&langId=en<\/a><\/p>\n

2<\/sup>Sulfur Dioxide, Wisconsin Department of Health Services
\nhttp:\/\/www.dhs\/wisconsin.gov\/eh\/chemfs\/fs\/SulfurDioxide.htm<\/a><\/p>\n

3<\/sup>Occupational Health Guideline for Sulfur Dioxide, OSHA
\nhttp:\/\/www.cdc.gov\/niosh\/docs\/81-123\/pdfs\/0575.pdf<\/a><\/p>\n

4<\/sup>Sulphur dioxide, CAS No 7446-095
\nCes.lisc.ernet.in\/energy\/HC270799\/HDL\/ENV\/enven\/vol361.htm<\/a><\/p>\n

5<\/sup>Documentation for Immediately Dangerous To Life or Health Concentrations (IDLHs) – Sulfur dioxide
\nhttp:\/\/www.cdc.gov\/niosh\/idlh\/7446095.html<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Sulphur dioxide [also called sulfur dioxide and SO2] is a colorless gas or liquid with a strong odor. It can be produced by the burning of coal, the source of most sulphur dioxide released into the environment.2 Because it can be inhaled in the general environment, much of the research on sulphur dioxide\u2019s effect is… Learn More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1186,2837],"tags":[],"class_list":["post-3141","post","type-post","status-publish","format-standard","hentry","category-chemical-solvents","category-fume-control-extraction"],"yoast_head":"\nWorkplace engineering control for sulphur dioxide, an acid gas - Sentry Air Systems, Inc.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sentryair.com\/blog\/industry-applications\/chemical-solvents\/workplace-engineering-control-for-sulphur-dioxide-an-acid-gas\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Workplace engineering control for sulphur dioxide, an acid gas - Sentry Air Systems, Inc.\" \/>\n<meta property=\"og:description\" content=\"Sulphur dioxide [also called sulfur dioxide and SO2] is a colorless gas or liquid with a strong odor. 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