Posts Tagged TSI

Elevated Respirable Particulate Levels on Train Platforms at Union Station


Last summer, the U.S. Environmental Protection Agency conducted an air quality survey at Union Station in Chicago. The results showed elevated concentrations of respirable particulate matter (PM2.5) in ambient air on train platforms and nearby streets.

PM2.5 is a mixture of liquid droplets and particles measuring 2.5 micrometers in diameter or smaller. These tiny particles can be inhaled deep into the lungs where they can enter the bloodstream and cause serious health problems. The risk is even more severe for youth, the elderly and those with respiratory conditions like asthma.

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Tuning Ventilation Systems Saves Energy, Reduces Employee Exposure Risk

Are we running exhaust fans enough to keep the air breathable and safe? Are we over-running fans and wasting energy?

Area exposure monitors are ideal for showing airborne particulate concentration over time in a designated area. Personal exposure monitors can do the same, but they also provide usable details about concentrations within the employee’s breathing zone. Used together, the two device types provide effective real-time data for making decisions regarding employee health and ventilation control.

Recently, we helped a customer with a large welding operation. There was visible smoke on the plant floor during operation, so they needed to address both potential hexavalent chrome and total respirable dust exposure. They decided to use the TSI DustTrak DRX handheld unit for area monitoring, and employees started wearing TSI SidePak AM510s for personal monitoring.

DustTrakDRX BlogSidePak AM510 Blog.jpg

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Respiratory Protection Ranks #4 on OSHA’s Most Cited Violations in 2015

The Top 10 list of OHSA’s most-frequently cited violations for fiscal year 2015 has been posted and Respiratory Protection is ranked at #4 with more than 3,600 violations this year.


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Does the level of carbon dioxide in your office affect your decision making?

officesceneThis is probably a less flashy headline then “does carbon dioxide make you dumber?” And there have been some variations of that headline floating around.

The subject of carbon dioxide and volatile organic compounds (VOCs) in office and school environments is not new. Generally speaking, productivity and effectiveness can decline throughout the day as CO2 levels rise.

The most recent study by Environmental Health Perspectives focused on effect of CO2 and VOCs on cognitive ability. Would higher levels affect decision making?

According to the study, it does.

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Why is the grimace exercise excluded in quantitative fit testing?

Short answer: It isn’t.N95 fit testing

We get this question a lot and it’s understandable how it can be misinterpreted. The quantitative fit testing method requires eight dynamic exercises. Seven are performed and measured for one minute each. One is performed for 15 seconds and is not measured. Want to guess which one?

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