Conventional grab sampling of water can greatly misrepresent actual exposure to chemicals. Passive sampling (over many days to weeks) provides a more representative time-weighted average exposure
Atrazine in Stream at Edge of Field
Competing passive sampling technology measures either water-soluble or fat-soluble chemicals, not both. This adds cost and complexity to chemical exposure measurement
Far more chemicals were detected using CIPS deployed in wastewater than with other PSDs or in a grab water sample
Atrazine in Stream at Edge of Field
Atrazine concentrations change dramatically with time. CIPS deployed for 30 days captures a far more representative measure of exposure than a grab sample
Time-Integrated Data
Microcystin LR concentrations vary 1000-fold over the 10-day period the US EPA uses to assess for adverse human health effects. CIPS captures the time-weighted average of the dissolved phase MC-LR
Quantitatively accumulates organic chemicals over log KOW range of < 0 - 8.3
Atrazine
PCB 153
Two of the most common existing passive samplers capture a very different range of chemicals. Low-density polyethylene (LDPE) captures non-polar, fat-soluble chemicals (log KOW > 3.5), while the polar organic chemical integrative sampler (POCIS) captures polar, water-soluble chemicals (log KOW < 3.0). In stark contrast, CIPS offers an unparalleled ability to capture both polar and non-polar chemicals with log KOW < 0 - 8.3
CIPS captures nearly the full range of organic chemicals regulated in drinking water and considered hazardous substances by the US EPA for the Superfund Program. No other passive sampler comes close to this performance
PRCs can be used to account for environmental variables that have an effect on chemical uptake rates, such as water flow, temperature, and biofouling of the passive sampler
Simply deploy in water for 1-30 days
can be used in air, sediment, soil, and biosoils
Polar and non-polar chemicals are captured
log KOW < 0 - 8.3
Extract with only 4 ml of solvent
can use with LCMS, GCMS, or in vitro assays
Statera has been deploying our CIPS passive samplers at dozens of sites around the world
Tijuana River
Transboundary movement of chemicals in Tijuana River
San Diego
Bioavailability of organic chemicals in water and sediment
Seattle
Fate and exposure to tire anti-degradants (6PPD)
Shanghai
Fate and exposure to tire anti-degradants (6PPD)
China
Transboundary movement of chemicals in Mekong and Red Rivers
Louisiana
Bioavailability of PAH and oxy-PAH in water and sediment
Gulf of Mexico
Fate and exposure to brevetoxins
China
Fate and exposure to microcystins
United States
Fate, exposure and bioavailability of PFAS
United States
Fate, exposure and bioavailability of pesticides
United States
Target and non-target analysis of the chemical exposome
United States
Target and non-target analysis of the chemical exposome
San Diego
Fate, exposure and bioavailability of pesticides
Philippines
Fate, exposure and bioavailability of pesticides
Philippines
Fate, exposure and bioavailability of aquaculture chemicals
Nigeria
Bioavailability of PAH and oxy-PAH in water and sediment
The CIPS are being used to assess:
Chronic time-weighted-average (TWA) exposure in water for over 500 chemicals spanning log KOW < 0 - 8.3
PAHs, PCBs, legacy and current use pesticides, PFAS, PPCP chemicals, HABs, 6PPD
Metabolites and degradation products, byproducts of disinfection and waste treatment
Organic chemical exposome using both target and non-target analysis with high resolution mass spectrometry
Transboundary movement of chemicals in Asia and North America
Harmful algal blooms toxins (HABs) in the US and Asia (microcystins, brevetoxins, domoic acid)
Chronic exposure to tire anti-degradants (6PPD and 6PPD-quinone)
Fate, exposure and bioavailability of organic chemicals in water, sediment soil, and biosolids
Joshua Home
New York Times
Nulla vitae elit libero, a pharetra augue.
New York Times
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