Gradko International Ltd are market leaders in the supply and analysis of low cost air pollution monitoring equipment. New to our range of laboratory services is forensics drugs analysis. We are also specialists in the manufacture of high quality small-bore peristaltic pump tubing. Air quality monitoring: Gradko Environmental prepare, supply and analyse diffusion tubes for a wide range of airborne contaminants. Our success has been built on providing a flexible and cost effective service that tailors the application capabilities of the monitors to exact customer requirements. Diffusion tubes are available for NO2, NOx, SO2, ozone, ammonia, hydrogen sulphide, acid gases, formaldehyde and VOCs. Laboratory plastics tubing: Gradko International have specialised in the manufacture of pump tubing for continuous flow and automated systems for 39 years. Our tubes are widely used in medical equipment, laboratories and industrial processes and we are committed to maintaining the quality and long-life of the tubes. We provide tubing in the following principle material categories: PVC, Santoprene® Thermoplastic Elastomer, Solva, Silicone, Viton®, Polyethylene and Polyurethane. Forensic services: Gradko forensics employs a team of experienced drugs analysts, fully trained as expert witnessed. Services include identification, weight and purity of all commonly encountered drugs of abuse. The forensics department also offer scent training aids for the security dog sector.