Description:
During the Fall of 1997 and Spring of 1998, VSI conducted a performance
audit of an air monitoring program at the Los Angeles International
Airport. The air quality network consisted of four PM10
samplers, a Dasibi Model 3003 CO analyzer, a Monitor Labs Model
8850 SO2 analyzer, and a Monitor Labs Model 8840 NO/NOx
analyzer. The meteorological network consisted of wind speed,
wind direction, ambient temperature, delta temperature, and solar
radiation.
Description:
During 1995-1999, VSI worked on a part-time basis with the Maricopa County Bureau
of Air Pollution Control to provide assistance in the upgrade of the county's
existing monitoring program. VSI was responsible for the installation and calibration
of equipment, the development of automated calibration capabilities, the preparation
of standard operating procedures, and the training of personnel. Instrumentation
has included Dasibi Model 5008 Calibrators, Dasibi Model 1008-AH Ozone analyzers,
TECO Model 48 CO analyzers, TECO Model 43b S02 analyzers, TECO Model
42 NO/NOx analyzers, ESC Model 8800 data loggers, and various other meteorological
and air quality instrumentation.
Description:
During 1993-1999, VSI conducted semiannual performance and system audits of an
air monitoring network near a coal-fired power plant. The meteorological monitoring
network included Climatronics instrumentation for wind speed, wind direction,
ambient temperature and solar radiation; the air quality network includes PM10
samplers.
Description:
Working with Sonoma Technology during the summer of 1995 and the
summer of 1996, VSI provided technical support in the installation,
calibration, and operation of air quality equipment used in the
aerial measurement of ozone, oxides of nitrogen, sulfur dioxide,
and carbon monoxide. Instrumentation included TECO Model 42S NO/NOy,
TECO 43S S02, TECO 48S CO and Monitor Labs Model 8410
Ozone analyzers.
Description:
As a subcontractor to Aerovironment, Inc., VSI provided technical
assistance for the installation and calibration of the air monitoring
instrumentation. Instrumentation included Dasibi Model 3003 and
TECO Model 48 CO analyzers, a modified TECO 41 (CO2)
and Milton Roy Model 3300 CO2 analyzers, and various
conventional meteorological instrumentation.
Description:
As a subcontractor to Aerovironment, VSI provided technical support in the installation,
calibration and maintenance of an air monitoring network during a six-week carbon
monoxide monitoring study and one-week tracer study. Instrumentation included
Dasibi Model 3003 and TECO Model 48 carbon monoxide analyzers, ATI sonic anemometers
and various conventional meteorological instrumentation
Description:
Working with Sonoma Technology during the fall of 1993, VSI provided
technical support in the installation and calibration of air monitoring
sites at various locations in central and southern California.
Instrumentation included Advanced Pollution Instrumentation (API)
Model 200 NO/NOx analyzers, API Model 400 Ozone analyzers and
TEOM Model 1400a PM10 samplers.
Description:
Working with Sonoma Technology during the summer of 1993, VSI provided technical
services for the operation, maintenance and calibration of air quality equipment
used in the aerial measurement of ozone and oxides of nitrogen. Instrumentation
included TECO Model 42 NO/NOx and Monitor Labs Model 8410 Ozone analyzers; VSI
also provided technical support for the measurement of carbonyl and reactive organic
compounds.
Description:
As a subcontractor to Aerovironment, Inc. during the 1992-93 Tucson Haze study,
VSI provided the field services for the operation and maintenance of air monitoring
equipment at four locations in the greater Tucson area. VSI was responsible for
assisting in the installation and calibration of the sampling equipment, their
routine operation, and for the transmission of analog and digital data, filter
samples and documentation associated with the monitoring. Instrumentation included
nephelometers, sequential filter samplers, dichotomous samplers, and meteorological
equipment.
Description:
As a subcontractor to NAWC during the summer of 1991, VSI provided
technical services for maintaining air quality equipment used
in the aerial measurement of ozone and oxides of nitrogen. Instrumentation
included TECO Model 42 NO/NOx and TECO Model 49 Ozone analyzers.
Description:
During October of 1990, VSI audited 15 air monitoring sites operated
by the Arizona Department of Environmental Quality, the Maricopa
County Bureau of Air Pollution Control, and the Pima County Department
of Environmental Quality. Criteria pollutant analyzers audited
included CO, Ozone and PM10.
Description:
As a subcontractor to NAWC during the 1990 SJVAQS, VSI provided
technical services for maintaining air quality equipment used
in the aerial measurement of ozone, oxides of nitrogen, and light
scattering. Instrumentation included TECO Model 42 NO/NOx analyzers,
Scintrex Model LMA-3 NO2 analyzers, Scintrex Model
LOZ-3 and modified LMA-3 Ozone analyzers, and MRI Model 1590 nephelometers.
Description:
During the fall/winter of 1989-90, urban haze and PM10
studies were conducted in the greater Phoenix and Tucson areas.
As a subcontractor to the Desert Research Institute, VSI provided
the field services for the two study locations. VSI was responsible
for assisting in the procurement and installation of the sampling
equipment at the 13 monitoring sites; the calibration, maintenance,
and routine operation of the sites; and for the transmission of
analog and digital data, filter samples, and documentation associated
with the monitoring program. Instrumentation included nephelometers,
NO/NOx analyzers, sequential filter samplers, dichotomous samplers,
a tape sampler, an EPA Visibility Van, meteorological and photographic
equipment.