Measure & Report Particulate Component Concentrations
Detailed Data For Public & Environmental Health
Met One Instruments, Inc. provides two monitors that measure and report carbon concentrations. Ambient air can contain significant amounts of carbon in certain areas. Differentiating the type of carbon—whether it is black carbon, brown carbon or organic carbon—is useful and an area of research. Through background monitoring, carbon identification, and concentration monitoring, regulators, researchers, and in some cases first responders, can begin to identify the source of the carbon, whether it be the burning of fossil fuels, wood, tobacco or other biomass.
Air quality monitoring professionals are often interested in knowing the chemical composition of the PM2.5, PM10, or TSP they are monitoring or sampling. Since these aerosols are typically made up of hundreds of different substances, many of which are interacting with the environment and with one another, aerosol chemical speciation is challenging. Historically, it has been a two-step process: sampling of the aerosol with a field-based sampler onto a specialized filter or through a pre-treated cartridge, followed by retrieval of the filter or cartridge and shipment to a laboratory for chemical analysis. This approach allows complex, highly sensitive and selective laboratory analyses to be performed but the results cannot be reported in real-time nor is time resolution other than 24-hour integrated results generally available. Although interest for practical, real-time, field-deployable speciation monitors has existed for many years, few have been successfully introduced. Of particular interest has been the ability to monitor black carbon “BC” and brown carbon “BrC”, two classes of substances known to be highly detrimental to human health. In addition, BC is known to be a significant contributor to global warming.
The Met One Instruments SASS and SuperSASS samplers are specifically designed for collection of PM2.5 onto multiple 47-mm filters followed by subsequent laboratory analysis of the collected PM2.5 for a variety of different chemical compounds including organic and elemental carbon “OC/EC”, heavy metals, and principal anions and cations. The SASS and the SuperSASS form the backbone of the US Chemical Speciation Network “CSN” with more than 200 units deployed over the years. The SASS and SuperSASS also exist in many monitoring networks outside of the United States. Met One Instruments’ E-FRM and E-SEQ-FRM samplers may be used also for collection of aerosols onto 47-mm filters for subsequent laboratory analysis with the added flexibility of being able to use PM1, PM2.5, PM10, or TSP cut points at 16.7 LPM.
Met One Instruments offers three specialty samplers for specifically defined applications; the IMPROVE Sampler, Pesticide Sampler and Toxics Sampler.
Substitute IMPROVE Sampler
This device is an ambient multichannel speciation sampler with a 20 LPM channel through 25 mm filter media for collecting ambient PM2.5 samples for the IMPROVE program. This sampler provides additional 6.7 LPM channels onto 47-mm filter media for the US-EPA Speciation Network.
Our pesticide sampler is a highly customizable speciation sampler designed specifically for sampling of specific pesticides, herbicides and fungicides typically found in agricultural settings. Field sampling and subsequent laboratory methods for quantification of these substances is highly specialized, as a result more generalized aerosol samplers are usually not used for this application. One common configuration has 3-channels with flow rates 15 LPM (PTFE cartridge), 1.5 LPM (thin glass cartridge), and 50 cc/min (thin glass cartridge) for sampling and subsequent analysis for organophosphate pesticides, methyl isocyanate (MITC) and chloropicrin. Other configurations are also available.
This application specific unit is a multi-channel ambient sampler for toxics sampling according to US-EPA TOC or Compendium Methods for aldehydes/ketones, hexavalent chromium (Cr+6) and VOCs. In addition to offering 4 filter-based channels, the sampler can also control several SUMMA canisters. This device is programmable and upgradeable.
Black carbon “BC” and Brown Carbon “BrC” are substances created through combustion of fossil fuels. Both are considered to be pollutants and BC is known to contribute to global warming due to its black color and its ubiquitous nature anywhere fossil fuel combustion occurs. Unlike other common constituents of PM2.5, such as inorganic sulfates, inorganic nitrates, ammonium compounds, silica, and ionic substances such as iron oxide or sodium chloride, all of which are relatively benign, many of components of BC or BrC are known carcinogens and are highly toxic. Met One Instruments offers two BC monitors: the research grade BC-1054 MultiSpectrum Carbon Monitor and the portable BC-1060 two wavelength carbon monitor.
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Pictured here is Met One’s SASS Speciation Sampler being used for pesticide sampling
Speciation Particulate Matter Monitors & Samplers Products:
BC 1054 Black Carbon Analyzer
The Met One Instruments BC 1054 Multi-spectrum Black Carbon Analyzer continuously measures the transmittance of light across filter media onto which particulate matter is accumulating and in real-time calculates the black-carbon “BC” concentrations at 10 different wavelengths ranging from the...
E-SEQ-FRM Sequential Reference Particulate Sampler
Our E-SEQ-FRM Reference Method meets the regulatory requirements for PM2.5, PM10 and PM10-2.5 sampling methods. The E-SEQ-FRM accommodates up to sixteen (16) 47-mm diameter filter samples and may be pre-programmed to a flexible, user-defined sampling schedule, permitting more than 2 weeks of...
E-FRM-DC Reference Method Particulate Sampler
The new and improved Met One Instruments, Inc. E-FRM-DC sampler is a single-event filter sampler to determine daily PM2.5 or PM10 particulate concentrations in ambient air. The E-FRM-DC has an innovative design and unique features that provide a versatile, reliable,...
SASS and SUPER SASS Speciation Sampler
Met One’s Speciation Samplers are designed to comply with and exceed EPA Speciation requirements. Two models provide a choice for compliance monitoring: SASS, a 5 channel sampling system; and SUPER SASS, an 8 channel, multiple event, sampling system. The SASS...
E-Sampler Dual Ambient Monitor/Sampler
Our E-SAMPLER is the most feature-packed light-scatter Aerosol Monitor available. Whatever your monitoring needs, the E-sampler will provide accurate, dependable and relevant data.
Our BC-1060 portable black carbon monitor measures and reports black carbon concentrations, with user-selectable time resolution down to one minute, at both UV (370 nm) and IR (880 nm) illumination wavelengths. The combination of portability and dual-wavelength illumination permits rapid,...
CCS COMET Cloud+ Service
Met One Instruments’ COMET Cloud Plus+ (CCS) is a cellular modem and cloud data service package which is directly compatible with a variety of air quality and meteorological sensors. The CCS modem is available for 4G LTE Domestic and GSM/...
Swift 6.0 Flow Meter
The Swift 6.0 is a multi-function Flow Meter specifically designed for accurate low rate measurements. The device’s easy to read display shows Flow Rate, Flow Temperature and Ambient Pressure. Flow measurements are traceable to our NIST standard and Certification is...