Environmental Chemical Contaminant Testing Services: Water, Soil, Air, Sediment & Biota Analysis

As an independent third-party testing service provider, we offer comprehensive chemical analysis for environmental matrices – including water (surface, ground, drinking, wastewater), soil, sediment, air, dust, and biota. Environmental contaminants such as heavy metals, pesticides, volatile organic compounds (VOCs), semi‑volatile organic compounds (SVOCs), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), per‑ and polyfluoroalkyl substances (PFAS), petroleum hydrocarbons, and emerging pollutants pose risks to ecosystems and human health. Our accredited laboratory follows international standards (ISO, EPA, ASTM, EN, WHO, China GB, EU Water Framework Directive) to deliver reliable, legally defensible data for regulatory compliance, site assessment, remediation monitoring, and environmental impact studies. This article outlines our environmental chemical testing capabilities – including scope, key test items, and standard test methods – to help consultants, industries, government agencies, and researchers protect environmental quality.

1. Our Testing Scope for Environmental Chemical Contaminants

We cover all major environmental compartments and contaminant classes:

By matrix type: Water (freshwater, seawater, drinking water, groundwater, wastewater, leachate, process water); Soil (agricultural, residential, industrial, brownfield, sediment, sludge); Air (ambient, indoor, stack emissions, dust, particulate matter – PM10, PM2.5); Biota (fish, plants, invertebrates, animal tissues); Waste (solid waste, hazardous waste, construction debris).

By contaminant class: Heavy metals (Pb, Cd, Hg, As, Cr, Cu, Ni, Zn, Co, Tl, Sb, Se); Volatile organic compounds (VOCs – benzene, toluene, ethylbenzene, xylenes, chlorinated solvents, MTBE, vinyl chloride); Semi‑volatile organic compounds (SVOCs – phenols, phthalates, nitroaromatics, anilines); Polycyclic aromatic hydrocarbons (PAHs – 16 EPA priority PAHs including benzo[a]pyrene); Polychlorinated biphenyls (PCBs – Aroclor & congener‑specific); Pesticides (organochlorines, organophosphates, carbamates, pyrethroids, triazines, neonicotinoids); Herbicides (glyphosate, 2,4‑D, atrazine, diuron); Per‑ and polyfluoroalkyl substances (PFAS – PFOS, PFOA, PFHxS, GenX, etc.); Petroleum hydrocarbons (TPH – gasoline, diesel, lubricating oil ranges; BTEX; GRO, DRO, ORO); Emerging contaminants (pharmaceuticals, personal care products, endocrine disruptors, microplastics); Inorganic anions & cations (fluoride, chloride, nitrate, nitrite, sulfate, phosphate, ammonia, cyanide); Disinfection by‑products (trihalomethanes – THMs; haloacetic acids – HAAs); Dioxins & furans (PCDD/Fs).

By project type: Regulatory compliance (EPA, NPDES, REACH, China GB); Environmental impact assessment (EIA); Brownfield / contaminated land investigation; Remediation validation; Drinking water safety (WHO, US EPA, EU); Industrial wastewater discharge monitoring; Air quality monitoring (ambient, workplace).

2. Key Test Items We Perform

Our environmental chemical testing services are organised by matrix and analyte group. We offer both target screening and non‑target discovery (by high‑resolution mass spectrometry).

2.1 Water & Wastewater Testing

Heavy metals – total and dissolved (Pb, Cd, Hg, As, Cr⁶⁺, Cu, Ni, Zn, Co, etc.).
VOCs – benzene, toluene, chlorinated solvents (PCE, TCE, 1,1,1‑TCA), MTBE, vinyl chloride.
SVOCs – phenols, phthalates, nitroaromatics.
PAHs – 16 priority compounds (naphthalene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3‑cd]pyrene, dibenzo[a,h]anthracene, benzo[ghi]perylene).
Pesticides & herbicides – by GC‑MS / LC‑MS (e.g., atrazine, simazine, glyphosate, diuron, organophosphates).
PFAS – perfluorooctanoic acid (PFOA), perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate (PFHxS), perfluorononanoic acid (PFNA), GenX (HFPO‑DA), and many others (≥40 compounds).
TPH – gasoline range (GRO), diesel range (DRO), oil range (ORO).
Anions & cations – F⁻, Cl⁻, NO₂⁻, NO₃⁻, SO₄²⁻, PO₄³⁻, NH₄⁺, Na⁺, K⁺, Ca²⁺, Mg²⁺.
Disinfection by‑products – trihalomethanes (chloroform, bromodichloromethane, dibromochloromethane, bromoform); haloacetic acids (HAAs).
Inorganic parameters – pH, conductivity, total dissolved solids (TDS), total suspended solids (TSS), turbidity, dissolved oxygen (DO), chemical oxygen demand (COD), biochemical oxygen demand (BOD), total organic carbon (TOC).
Cyanide (total & amenable), fluoride, sulfide.

2.2 Soil & Sediment Testing

Heavy metals (same as water – aqua regia or microwave digestion).
VOCs (headspace or purge & trap).
SVOCs, PAHs, PCBs, pesticides, herbicides, PFAS.
TPH (C6‑C40 by GC‑FID).
Petroleum hydrocarbons in soil – Tier 1 (GRO/DRO) and Tier 2 (fractionation).
Chlorinated pesticides (DDT, DDE, DDD, aldrin, dieldrin, endrin, heptachlor, lindane, etc.).
PCBs (Aroclor 1016, 1221, 1232, 1242, 1248, 1254, 1260, or congener‑specific).
Phenol & cresols.
Total organic carbon (TOC) & total nitrogen (TN).
pH, electrical conductivity, cation exchange capacity (CEC).
Fluoride, chloride, sulfate (water‑soluble).

2.3 Air & Stack Emission Testing

VOCs in ambient air (canister or sorbent tube) – TO‑15 / TO‑14 compounds.
BTEX (benzene, toluene, ethylbenzene, xylenes).
Aldehydes & ketones (formaldehyde, acetaldehyde) – DNPH cartridge, HPLC.
PAHs in particulate matter (PM10, PM2.5).
Heavy metals in air (dust, PM).
Sulphur dioxide (SO₂), nitrogen oxides (NOx), carbon monoxide (CO), ozone (O₃) – by real‑time analysers or passive samplers.
Ammonia (NH₃) in air.
Total suspended particulates (TSP), PM10, PM2.5 mass.
Volatile organic compounds in stack gas (Method 18, 25).
Dioxins & furans (PCDD/Fs) – high‑resolution GC‑MS.
Mercury (Hg) in stack gas (Method 30B).