Why it’s important PEL Health Effects Sampling Methods
Table C13-1. Substances for which limits are based on avoidance of metabolic effects (NOTE: Because of its width, this table has been divided; see continuation for additional columns. _________________________________________________________________________ H.S. Number/ Chemical Name CAS No. Former PEL Proposed PEL _________________________________________________________________________ 1025 Aniline and homologs 62-53-3 5 ppm TWA, Skin 2 ppm TWA, Skin 1058 Calcium Cyanamide 156-62-7 -- 0.5 mg/m(3) TWA 1068 Carbofuran 1563-66-2 -- 0.1 mg/m(3) TWA 1069 Carbon dioxide 124-38-9 5,000 ppm TWA 5,000 ppm TWA 30,000 ppm STEL 1071 Carbon monoxide 630-08-0 50 ppm TWA 35 ppm TWA 200 ppm Ceiling 1091 Chlorpyrifos 2921-88-2 -- 0.2 mg/m(3) 0.6 mg/m(3) STEL, Skin 1103 1104 Crufomate 299-86-5 -- 5 mg/m(3) TWA 20 mg/m(3) STEL 1131 Cyanamide 420-04-2 -- 2 mg/m(3) TWA 1143 Dicrotophos 141-66-2 -- 0.25 mg/m(3) TWA Skin _________________________________________________________________________ http://www.osha.gov/pls/oshaweb/o wadisp.show_document?p_table=PRE AMBLES&p_id=770
Carbon dioxide is a colorless, odorless, noncombustible gas. OSHA bases this conclusion on the fact that, while the evidence has not shown that prolonged exposures to 10,000 ppm are harmful, acute exposures to CO(2) concentrations in excess of 30,000 ppm have been demonstrated to cause changes in respiration rates in humans. http://www.osha.gov/pls/oshaweb/o wadisp.show_document?p_table=PRE AMBLES&p_id=770
Silent Killer Could this be You? What about your family? Or What about your co- workers?
Does he know what he’s looking for? Which is more accurate?
Five layer aluminized gas sampling bag Gastech Detector Tubes 200ml sample or 2 strokes 0.13-6% validity Evacuated Cans
Five layer Aluminized Gas Sampling Bag Mx. V. 5 liters Min V. 2 liters Max flow rate -.05 L/min Gas Chromatography Electrochemical Sensor Sample up 8 hours Measure limit – 999pm Detection limit – 4.1 ppm Over uncertainty 9.6% uncertainty
DayTestCO2 ppm CO ppm Relative H % Temp °F Wednesday 3/19/08 Baseline Gas Probe01,074033.076.9 Gastech tube0500 Peak Gas Probe621,494032.078.0 Gastech tube62800 Thursday 3/20/08 Baseline Gas Probe01,121034.074.0 Gastech tube0600 Peak Gas Probe 711,734027.076.4 Gastech tube71625
Mold spores are all around Can grow anywhere where warmth and moisture are present Moisture Control will help eliminate mold growth Reduce indoor humidity 30-60% to decrease mold growth
Building – related illnesses (BRI’s) Objective clinical finding related to specific exposure Diagnosed by evaluation of signs & symptoms Sick Building Syndrome Experience symptoms and linked to time in building No specific cause of illness is identified
Nasal stuffiness, eye irritation, wheezing or skin irritation Serious allergies to molds – severe reaction – fever and shortness of breath. Chronic lung disease / Weakened Immune Systems– potential for mold infection in lungs
Mold Sampling – 2 types Dermal wipe – in Lab. Incubate and identify Dermal wipe – DNA tests can identify molds more rapidly
What is “black mold”? The news media often refer to “black mold” or “toxic black mold.” It is usually associated with Stachybotrys chartarum, a type of greenish-black mold commonly associated with heavy water damage. Not all molds that appear to be black are Stachybotrys. The known health effects from exposure to Stachybotrys are similar to other common molds, but have been inconclusively associated with more severe health effects in some people. http://www.aiha.org/AIHAContent/templates/TopPicksTemplate.aspx?NRMODE=Pub lished&NRNODEGUID=%7b85F062DC-34DF-49CE-BED2- F4D39B2F11F9%7d&NRORIGINALURL=%2fcontent%2faccessinfo%2fconsumer%2ffactsa boutmold%2ehtm&NRCACHEHINT=NoModifyGuest#whatisblackmold
Occupational Safety and Health Administration, U.S. Department of Labor (2008). Regulations, VI. Health Effects Discussion and determination of Final PEL. Retrieved April 2, 2008 from http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=PREAMBLES &p_id=770 Occupational Safety and Health Administration, U.S. Department of Labor (2007). Chemical Sampling Information, Carbon Monoxide (by COHb). Retrieved April 7, 2008 from http://www.osha.gov/dts/chemicalsampling/data/CH_225610.htmlhttp://www.osha.gov/dts/chemicalsampling/data/CH_225610.html Occupational Safety and Health Administration, U.S. Department of Labor (2007). Chemical Sampling Information, Carbon Dioxide. Retrieved April 7, 2008 from http://www.osha.gov/dts/chemicalsampling/data/CH_225400.html http://www.osha.gov/dts/chemicalsampling/data/CH_225400.html Occupational Safety and Health Administration, U.S. Department of Labor (2008). Carbon Dioxide in Workplace Atmospheres. Retrieved April 7, 2008 from http://www.osha.gov/dts/sltc/methods/inorganic/id172/id172.html http://www.osha.gov/dts/sltc/methods/inorganic/id172/id172.html U.S Environmental Protection Agency, (2008). Mold Resources, Mold, Indoor Air Quality, Air, US EPA. Retrieved April 8, 2008 from http://www.epa.gov/mold/moldresources.html#Introduction%20to%20Molds http://www.epa.gov/mold/moldresources.html#Introduction%20to%20Molds