Environmental & Industrial

Environmental & Industrial Hygiene

Your world-class soil, air and water inspection, sampling and analysis partner

Alex Stewart Agricultures environmental inspection and testing services in Argentina, Bolivia, Brazil, Chile, India, Latvia, Malaysia, Norway, Peru, Romania, Turkey, Ukraine and the UK provide environmental services to heavy industry and the world’s agricultural, food, construction, petrochemical, recycling and waste-management sectors.

Environmental analysis is professionally supported by inspection, sampling, sample collection, e-certification, technical consultancy and friendly customer services. Our industrial hygiene and environmental inspectors can provide:

  • Continuous measurement of temperature, relative humidity and carbon dioxide.
  • Mapping of air circulation and draft.
  • Written reports with evaluation of the conditions and suggestions for improvement.
  • Measurement of gases within a work environment.
  • Measurement of light.
  • Measurement of noise.
  • Measurement of dust and pollution (total dust and/or chemical content).
  • Management of inflammable and noxious substances.

Complete analysis is available for:

  • Industrial stack emissions.
  • Effluence and sewage water.
  • Landfill and soil.
  • Surface hygiene.
  • Processed wastewater.
  • Potable water.
  • Bottled mineral water.
  • Processed waste water.
  • Swimming pools, spas and jacuzzis.
  • Sea and fresh water.

Environmental analysis and water testing services

Alex Stewart Agriculture’s laboratories in the UK, Norway, Argentina and Peru provide fast, accurate results and a comprehensive range of environmental analysis and water testing services as regards:

  • Ammonia, Nitrogen.
  • Bromine.
  • Chloride.
  • Chlorine, free.
  • Chlorine, total.
  • Chromium, hexavalent.
  • Volatile acids.
  • Chromium, total.
  • Colour.
  • COD.
  • Fluoride.
  • Hardness.
  • Heavy metals
  • Metals in water
  • PCB.
  • Phosphorous.
  • Silica.
  • Sulphate.
  • Sulphide.
  • Surfactants.
  • Suspended solids.
  • TOC.
  • Tannin.

Trace metal detection and heavy metal testing

Alex Stewart Agriculture also provides heavy metal, trace element testing, water testing and environmental analysis, including testing for heavy metals in water.

Arsenic, cadmium, lead and mercury all contain toxic bioaccumulation. Lead contamination can be present in drinking/potable water, while mercury can be present in fish and seafood. International regulatory bodies set maximum limits for lead, cadmium and mercury in food and beverages.

We test for metals in waters and food using traditional methods based on atomic absorption spectroscopy (AAS) or state-of-the-art instrumentation through ICP-OES and ICP-MS techniques, which determine the lowest detection limits to analyse trace metal amounts in line with national regulations.

Heavy metals testing in water and industrial waste 

  • Lead.
  • Cadmium.
  • Arsenic.
  • Organic/Inorganic
  • Arsenic.
  • Mercury.
  • Methyl Mercury.
  • Aluminium.
  • Chromium.
  • Iron.
  • Copper.
  • Strontium.

Microbiological testing in soil and water

  • Pseudomonas aeruginosa.
  • Coliforms presumptive/confirmation.
  • Escherichia coli presumptive/confirmation.
  • TVC @ 22ºC, 30ºC and 37º.

Learn more

For further information about our world-class environmental and industrial hygiene services call + 44 (0) 151 525 1488 or email us.

All of our inspection business is subject to standard terms and conditions, which are available upon request

Our Locations

A Global Network

  • AS Inspections, Loads and Discharge Operations
  • AS Laboratory, Sample Preparation and Customer Services
  • AS Government Business Headquarters

Our Business

Analysis - GAFTA & FOSFA Analysts

Food Testing Services


Learn More

For further information, call 44 (0) 151 525 1488 or Email Us.

All inspection business is subject to standard terms and conditions which are available upon request.

A Global Network

Our Locations