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Site Health and Safety Plan <br /> ENSAFE RS&H <br /> Stockton Metropolitan Airport, Stockton, California <br /> January 27, 2020 <br /> Cold Stress <br /> Care should be taken to remain cognizant of cold stress hazards that can be encountered throughout <br /> the year. A large percentage of hypothermia cases occur when the air temperature is from 50-60 <br /> degrees Fahrenheit. <br /> III I • _ e <br /> LOW TEMPERATURE+WIND SPEED+WETNESS <br /> =INJURY&ILLNESS <br /> -1. hd P.—.11 h.s­damage and deaffi may result- Hypotharri can occur <br /> 98 G'F[37'C-Cold related line--I`—slZy—rcome a pemon who has been <br /> Wind Speed(MPH) <br /> 310M-1.rC <br /> 20'F1-6.7'C <br /> frostbite Occurs <br /> 10'FI-12.2•C In 2 Hours <br /> 0'FI-17.13'C FrostbiteCowd <br /> Occur in 45 Minutes <br /> or Le55 <br /> -1 Cr FI-23.T C <br /> Frostbite Could <br /> -20'F1-28.TC Occur in 5 Minutes <br /> or Less <br /> -30'FI-34.4-C <br /> -40•F!-40'G Adapted from_ <br /> ACGIK Threshold <br /> Limit Values <br /> -50'FI-45.6'C Chemical Subarencez <br /> and Physical Agents <br /> Biohazard 3nd.- <br /> 2. <br /> The chart above outlines the anticipated onset of cold stress when combining temperature, humidity <br /> and wind speed. Tents or structures should be used to provide shelter from extremely cold <br /> environments and a heat source should be available in the event a cold stress situation should arise. <br /> Site workers will be actively monitored for the following symptoms of hypothermia, if protracted <br /> (i.e., >1 hour in duration) onsite operations are conducted when the air temperature is below 30°F: <br /> • Speech problems (e.g., slurring) <br /> • "Goose bumps" with a bluish or "dead white" appearance <br /> Vertigo <br /> Intense shivering <br /> If a worker develops one or more of these symptoms, he/she will immediately be taken to a warm, <br /> sheltered area and his/her oral temperature taken. Any worker thus affected will remain in the <br /> sheltered area until his/her temperature is measured at 98.60F and/or the above-mentioned <br /> 18 <br />