Air Passive Sampling Articles & Analysis
11 articles found
Introduction Microbiological sampling within a pharmaceutical manufacturing facility is performed using several methods: surface sampling passive aerosol (air) environmental sampling active aerosol (air) environmental sampling Each of these methods produces a result based ...
In the pharmaceutical manufacturing industry, ensuring sterility and minimizing microbial contamination are critical for maintaining product quality and safety. Microbial sampling is a key component of environmental monitoring, and understanding the optimal criteria for sampling can significantly impact the effectiveness of sterility assurance ...
Cost-effective sensors have started to make their mark when it comes to the air quality monitoring system. Today, there are many types of these low-cost sensors which are available in the market. However, certain aspects should be given importance when it comes to choosing the right solution to your problem. Here are ten things one should keep in mind while selecting a low-cost air quality ...
Improve Sampling and Detection of Carbonyls in Air Leverage a Wide Range of Samplers and Accessories Achieve sensitive and reliable results with air sampling media for a wide range of applications in various configurations for solvent desorption, thermal desorption, passive and whole air ...
Conifers are often used as an “air passive sampler”, but few studies have focused on the implication of broadleaf evergreens to monitor atmospheric semivolatile organic compounds such as polychlorinated biphenyls (PCBs). ...
Willow tree bark samples from urban and rural sites in Inner Mongolia, Ningxia Province, and Gansu Province, in the Yellow River basin, were analyzed for polybrominated diphenyl ethers (PBDEs), dechlorane plus (DP), and dioxin‐like polychlorinated biphenyls (DL‐PCBs) to compare their relative levels in air in these areas (i.e., treating bark as a ...
For decades, Sigma-Aldrich has been a key supplier of innovative & high technology air monitoring products for various areas of gas/air sampling. Enclosed, you will find an overview on new and interesting devices to improve or simplify your air sampling. Supelco and Sigma-Aldrich offer a range of active and ...
The aim of this paper was to evaluate the applicability of passive samplers for the monitoring and diagnosis of air pollution at Passo Fundo University, focusing on atmospheric pollutants NO 2 and O 3 . The samplers were built in accordance with already verified methodologies and were placed in several locations in the university campus, namely: energy generator, pool heating boiler, ...
To answer this question, concentrations of PCBs and enantiomer fractions of several PCB congeners were determined in soil and air, via polyurethane foam passive samplers, over several seasons between 2005 and 2008. Concentrations in both media were highest for samples collected closest to the SHTC, demonstrating a concentration profile typical of ...
Often air sampling systems have used passive flow methods based on orifices, needle valves, venturi meters, or rotameters to monitor the sampling rate. ...
This study evaluates the performance of Model 3300 Ogawa Passive Nitrogen Dioxide (NO2) Samplers and 3M 3520 Organic Vapor Monitors (OVMs) by comparing integrated passive sampling concentrations to averaged hourly NO2 and volatile organic compound (VOC) measurements at two sites in El Paso, TX. Sampling periods were three time intervals (3-day weekend, 4-day weekday, and 7-day weekly) for ...