Monitoring Station

AQ-Mesh Pod

MultiRAE-Pro

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aqmesh2
MultiRAE Pro

Site 1

Site 2

Site 3

Site 4

Site 5

Control location

Each monitoring station contains a solar panel, AQ-Mesh Pod, and environmental enclosure box which houses a battery and MultiRae-Pro monitor. Two stations will additionally have a weather station accessory mounted at the top.


Contaminants Measured

AQMesh Air Quality Monitor

Parameter

Range

Units

Limit of Detection (LOD)

Nitric oxide (NO)

0 to 4000

ppb or μg/m3

< 5 ppb

Nitrogen dioxide (NO2)

0 to 4000

ppb or μg/m3

< 10 ppb

Ozone

0 to 1800

ppb or μg/m3

< 5 ppb

Enclosure Temperature

-20 to 100

°C

0.1 °C

Atmospheric Pressure

500 to 1500

mb

1mb

Relative Humidity

0 to 100%

%RH

1%RH

Particle Count

0.3 to 30

μg/m3

0.3 to 30 μm

PM2.5

0 to 500

μg/m3

0 to 500 μg/m3

PM10

0 to 1000

μg/m3

0 to 1000 μg/m3

Carbon monoxide (CO)

0 to 6000

ppb or μg/m3

< 5 ppb

Sulfur dioxide (SO2)

0 to 10000

ppb or μg/m3

<10 ppb


Noise

Frequency Response

Accuracy

Level

Weighting

20Hz-10kHz

±dB

35dB SPL to 100db SPL

Unweighted


MultiRAE Pro

Parameter

Range

Units

Limit of Detection (LOD)

Hydrogen sulfide (H2S)

0 to 100

ppm

100 ppb

Methyl mercaptan (CH4S)

0 to 10

ppm

100 ppb

Formaldehyde (CH2O)

0 to 10

ppm

50 ppb

Organic Solvents (VOC)

0 to 2000

ppb

10 ppb

Definitions

AQMesh Air Quality Monitor

Parameter

Description

Nitric oxide (NO)

A colorless gas that is naturally occurring, but also generated by cars, trucks and buses, power plants, and off-road equipment.

Nitrogen dioxide (NO2)

A highly reactive red-brown gas that forms from emissions from cars, trucks and buses, power plants, and off-road equipment.

Ozone

A gas composed of three atoms of oxygen that can be found in the upper atmosphere or at ground level. Ground-level ozone is a harmful air pollutant created by a chemical reaction between oxides of nitrogen (NOx) and volatile organic compounds (VOC).

Enclosure Temperature

The temperature difference between the air inside a non-ventilated or cooled enclosure and the ambient air outside the enclosure.

Atmospheric Pressure

The pressure in the atmosphere, or the force exerted on a surface by the air above it as gravity pulls it to Earth. It is typically measured with a barometer.

Relative Humidity

The amount of water vapor present in the air compared to the amount needed for saturation at the same temperature.

Particle Count

A measurement of the particle size and number of particles in the air.

PM2.5

Fine inhalable particles, with diameters that are generally 2.5 micrometers and smaller that are made up of hundreds of different chemicals. Fine particles are produced from all types of combustion, including motor vehicles, power plants, forest fires, and agricultural burning.

PM10

Inhalable particles, with diameters that are generally 10 micrometers and smaller and can be made up of hundreds of different chemicals. These coarse dust particles are produced from crushing or grinding operations and dust stirred up by vehicles on roads.

Carbon monoxide (CO)

A colorless, odorless gas released when something is burned. Vehicles and machinery that burn fossil fuels release CO to outdoor air.

Sulfur dioxide (SO2)

Typically measured as an indicator for the larger group of gaseous sulfur oxides (SOx). The largest source of SO2 in the atmosphere is the burning of fossil fuels by power plants and other industrial facilities.


MultiRAE Pro (Model PGM-6248)

Parameter

Description

Hydrogen sulfide (H2S)

A flammable, colorless gas that smells like “rotten eggs.” It is naturally occurring in crude oil and natural gas, but industrial sources like food processing plants, natural gas plants, and tanneries release it.

Methyl mercaptan (CH4S)

A colorless gas that has a putrid smell and is released from decaying organic matter and animal feces and occurs naturally in certain cheeses. Factories that manufacture plastic, pesticides, or wood may also release it.

Formaldehyde (CH2O)

A colorless, flammable gas at room temperature that has a strong odor and is naturally produced as part of cell metabolism in all life forms. It can be found in resins in wood products, building materials and insulation, preservatives, fertilizers, or a byproduct of fuel burning appliances and cigarette smoke.

Organic Solvents (VOC)

Gases from certain solids or liquids that include a variety of chemicals. They are emitted by a wide array of products, including paints, aerosol sprays, glues, and copy machines.