Follow NEMC
 |
 |
 |
Passive Monitoring to Measure VOC's in the Workplace and Indoor Air
Oral Presentation
Prepared by L. Locker
Advanced Chemical Sensors Co., 101-B Glades Road, Boca Raton, FL, 33432, United States
Contact Information: acsbadges@AOL.com; 561-338-3116
ABSTRACT
Passive monitoring uses the principle of diffusion though a membrane to control the rate of collection of potentially toxic chemical vapors. Data is presented to show this is a very economical and accurate way to measure more than 100 chemicals with a single sample.
The amount collected depends on the sampling rate and the exposure time:
micrograms collected = (mg/cubic meter)(ml/min)(min)(10-3)
where (mg/cubic meter) is the concentration and (ml/min) is the sampling rate.
By using specially prepared collection media and GC/MS and HPLC for the analyses, levels in the low ppb can be routinely measured. Applications are discussed the measurement of in indoor air quality and personal exposure to toxic vapors in the workplace.
Passive monitoring uses the principle of diffusion though a membrane to control the rate of collection of potentially toxic chemical vapors. Data is presented to show this is a very economical and accurate way to measure more than 100 chemicals with a single sample.
The amount collected depends on the sampling rate and the exposure time:
micrograms collected = (mg/cubic meter)(ml/min)(min)(10-3)
where (mg/cubic meter) is the concentration and (ml/min) is the sampling rate.
By using specially prepared collection media and GC/MS and HPLC for the analyses, levels in the low ppb can be routinely measured. Applications are discussed the measurement of in indoor air quality and personal exposure to toxic vapors in the workplace.
Oral Presentation
Prepared by L. Locker
Advanced Chemical Sensors Co., 101-B Glades Road, Boca Raton, FL, 33432, United States
Contact Information: acsbadges@AOL.com; 561-338-3116
ABSTRACT
Passive monitoring uses the principle of diffusion though a membrane to control the rate of collection of potentially toxic chemical vapors. Data is presented to show this is a very economical and accurate way to measure more than 100 chemicals with a single sample.
The amount collected depends on the sampling rate and the exposure time:
micrograms collected = (mg/cubic meter)(ml/min)(min)(10-3)
where (mg/cubic meter) is the concentration and (ml/min) is the sampling rate.
By using specially prepared collection media and GC/MS and HPLC for the analyses, levels in the low ppb can be routinely measured. Applications are discussed the measurement of in indoor air quality and personal exposure to toxic vapors in the workplace.
Passive monitoring uses the principle of diffusion though a membrane to control the rate of collection of potentially toxic chemical vapors. Data is presented to show this is a very economical and accurate way to measure more than 100 chemicals with a single sample.
The amount collected depends on the sampling rate and the exposure time:
micrograms collected = (mg/cubic meter)(ml/min)(min)(10-3)
where (mg/cubic meter) is the concentration and (ml/min) is the sampling rate.
By using specially prepared collection media and GC/MS and HPLC for the analyses, levels in the low ppb can be routinely measured. Applications are discussed the measurement of in indoor air quality and personal exposure to toxic vapors in the workplace.