How are exposures measured
{"Image DocumentName": "How are exposures measured?", "Image ImageDescription": "Personal air samples. Estimate the amount of flavoring a worker might inhale into their lungs. Workers wear sampling pump for entire work shift. Different air sampling collectors for different flavorings. Currently, no method for diacetyl powders. Sample collector in breathing zone Worker wears sampling pump. Photos by National Jewish Health. How are exposures measured? Personal air samples are used to estimate the amount of flavoring a worker might inhale into their lungs. Workers wear a sampling pump for the entire work shift. Different air sampling collectors are used for different flavorings. It\u2019s important to note that currently, there is no method available for diacetyl powders. Notice in the picture on the left that the worker is wearing the sampling pump on their belt, and a tube connects that to the sampling collector which is up by the lapel, or in the breathing zone. The worker would wear this pump for the entire work shift. The bottom pictures show different types of collectors, so you see on the left that you have collectors for particle or dust collection, and then the picture on the right shows different types of tubes that are used for gas or vapor collection. It\u2019s important to note that exposures can change depending on the task performed and the products being produced. Because of this, it is important to do routine air sampling and since the exposure from one day is not necessarily representative of another day, multiple sets of samples are needed to adequately assess the exposure. Exposures can change depending on the tasks performed and the products produced. Particle/Dust Collectors. Gas/Vapor Collectors.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}