![]() Retrofit their tractors with pollution-control devices because This evaluation indicated that the control measures were notĮffective in reducing CO levels. CO levels at the beginning of the event averagedħ7.5 ppm and increased to 435.7 ppm by the event's close. WHD inspectors used the same measuringĪpparatus to take readings at the same locations as in theįebruary event. Included reducing the number of pulls to 24, expanding the eventīy 2 hrs to permit decay in the CO level, and opening ventilating Tractors had been allowed to run their engines before the event,Īnd large doors to the arena's ground floor had been closed.ĭuring the November event, measures to decrease CO levels The ventilation system had not been operating at full capacity, (the end of the competition), theĬO level had increased to 262 ppm. However, several tractors had been running their engines before Of 68 ppm at the start (8 p.m.) of the first of 25 pulls Intervals during the events at 25 seating locations at varyingĪt the February event, measurements indicated an average level Public health inspectors used a Gastech CO-82 Carbon Monoxideĭetector* to record levels before the events and at half hour To measure CO levels during the tractor-pull events, certified Recommended indoor guideline levels are 33 ppm for a 1-hrĮxposure and 18 ppm for an 8-hr exposure. Were used several times each during each game. Ice-edger and an ice-resurfacing machine, both of which emit CO, Previous monitoring of CO in the arena's seating area duringįull-occupancy hockey games indicated CO levels of 0-10 ppm an A tractor-pullĮvent lasts approximately 2 hrs and involves 25 individual pulls. (82-yd)-long dirt surface in the fastest time. During a typical "pull," approximatelyġ2 tractors compete in pulling a 40- to 50-ton sled across a 75-m Report summarizes findings from the two surveys.Ī "tractor" is a truck or other vehicle modified to look like aįarm tractor (e.g., large rear wheels and smaller front wheels)Īnd powered by a variety of units (e.g., aircraft turbines and ![]() ![]() November event, an attempt was made to mitigate CO levels. Manitoba, Canada, conducted surveys of two tractor-pull events inĪn indoor 15,000-seat arena to determine levels of CO. November 1988, the City of Winnipeg Health Department (WHD), In facilities such as underground garages and indoorĪrenas, CO is a particular concern because of its rapid toxicĮffects and potentially high concentrations. Internal combustion devices are health hazards in enclosed International NotesĬarbon Monoxide Levels in Indoor Tractor-PullĬarbon monoxide (CO) and other noxious gases produced by For assistance, please send e-mail to: Type 508 Accommodation and the title of the report in the subject line of e-mail. Persons using assistive technology might not be able to fully access information in this file.
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