|
Air Matrix /
Light Gas Analytes & Methods Currently Available from MAI |
||
|
Analyte |
Method |
Media (ST= Sorbent Tube) |
|
Light Gases |
|
|
|
Atmospheric (O2, N2, CO2,
CO ± Ar) |
ASTM D 1946-90 / EPA 3C by GC-PDD / TCD |
Summa, Tedlar, gas cylinder, water |
|
Hydrocarbons (methane, ethane, ethane, acetylene, others) |
ASTM D 1946-90 / EPA 3C / RSK 175 by GC-FID |
Summa, Tedlar, gas cylinder, water |
|
Inert (He, Ne, Ar, Kr, Xe) |
ASTM D 1946-90 / EPA 3C by GC-PDD / TCD |
Summa, Tedlar, gas cylinder, water may be possible |
|
H2 |
ASTM D 1946-90 / EPA 3C by GC-PDD / TCD |
Summa, Tedlar, gas cylinder, water may be possible |
|
Volatile Organics |
|
|
|
VOCs ± TPH(g) |
EPA TO-14, TO-15, 8260 |
Summa, Tedlar, gas cylinder |
|
TPH(g) |
EPA TO-3, 8015m by GC-FID |
Summa, Tedlar, gas cylinder |
|
Geosmin & MIB |
EPA 8270m |
Water, summa |
|
Other Organics |
|
|
|
Acetic acid |
NIOSH 1603m |
Impinger |
|
Alcohols |
NIOSH 1400 / 2000m by HPLC-FLD |
ST, Tedlar |
|
Aldehydes & Ketones |
ASTM D 5197-03 by HPLC-UV |
ST, Summa (analyte subset) |
|
Ethylene Glycol |
NIOSH 5523m |
ST ± Impinger |
|
OC & ON Herbicides |
NIOSH 5602 by GC-ECD |
ST |
|
OP Pesticides |
NIOSH 5600 by GC_NPD |
ST |
|
PCBs |
NIOSH 5503 by GC-ECD |
ST |
|
Phenols |
NIOSH 2546 by GC-MS SIM |
ST |
|
PNAs |
NIOSH 5506 by HPLC-UV-FLD |
ST |
|
TPH(d / mo) |
NIOSH 1550 by GC-FID |
ST |
|
Metals / Inorganics |
|
|
|
Hexachrome, in particulates |
NIOSH 7605 by IC-Colorimetry |
Filter |
|
Mercury, vapor |
NIOSH 6009 by CVAA or CVAF |
ST |
|
Metals, in particulates |
NIOSH 7303 by ICP-MS |
Filter |
|
Organic Lead (TML & TEL), vapor |
NIOSH 2534m by GC-ECD |
ST |
|
Particulates, Respirable |
NIOSH 0600 |
Cyclone + Filter |
|
Particulates, Total |
NIOSH 0500 |
Filter |
|
ZnSO4, aerosol |
NIOSH 7030m |
Impinger |
|
Note that particulate & vapor can usually be collected
simultaneously with a particulate filter & ST in series |
||
Glossary of Terms
Concentrations: may be given in ppm = ppmv;
mg/m3; mppcf = millions of particles per cubic foot of air as
determined from counting an impinger sample; fibers / cm3.
PEL, Permissable Exposure Limit: OSHA (Occupational Health
& Safety Administration). Pre-1989 PELs are enforced by OSHA due to a court
ruling that overturned stricter 1989 PELs. The 1989 PELs have some regulatory
effect for compounds that did not have PELs prior to 1989.
REL, Recommended Exposure Limit: NIOSH ( National Institute
for Occupational Safety & Health)
TWA, Time Weighted Average: NIOSH REL designed to be
applied in workplace settings for up to 10 hour days (OSHA 8 hour days) during
a 40 hour work week
STEL,:Short Term Exposure Limit: “ST” precedes numerical
value. 15 minute TWA that should not be
exceeded at any time during a workday. Numerical value is always higher than
REL or PEL.
C REL, Ceiling REL: “C” precedes numerical
value. Should not be exceeded at any time. 15 minute TWA is used if
instantaneous measurement is not possible. Numerical value is always higher
than REL or PEL. Maximum values are
specified exceptions to ceiling values. Maximum values are greater than ceiling
values, & short duration exceptions to ceiling values are allowed up to the
maximum value. For example, Ceiling value not to exceed “a 5 minute maximum
peak value in any 2 hours during an 8 hour day.”
(skin): printed after numerical limit; indicates skin absorption is a potential
intrusive pathway
(total): printed after numerical limit; the numerical REL or PEL is for Total
Particulate
(resp): printed after numerical limit; the numerical REL or PEL applies to the
‘Respirable Fraction’ of the airborne particulate
carcinogen: printed before or after numerical limit. Indicates
that compound is a known or suspected carcinogen.
ACGIH: American Conference of Governmental Industrial Hygienists