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Water pollutants refer to various harmful substances (or energy) that cause deterioration of water quality, aquatic biological communities, and sediment quality. The concentration of salt, trace elements, or radioactive substances in water exceeds the critical value, causing changes in the physical, chemical properties, or biological community composition of the water body. Water pollutants refer to pollutants that worsen water quality. The concentration of salt, trace elements, or radioactive substances in water exceeds the critical value, causing changes in the physical, chemical properties, or biological community composition of the water body. There are various types of pollutants that affect water bodies, which can be roughly divided into several categories from physical, chemical, biological, and other aspects. In terms of physics, pollutants mainly affect the color, turbidity, temperature, suspended solids content, and radioactive level of water bodies; In terms of chemistry, it mainly refers to various chemical substances discharged into water bodies, including inorganic non-toxic substances (acids, bases, inorganic salts, etc.), inorganic toxic substances (heavy metals, cyanide, fluoride, etc.), oxygen consuming organic compounds, and organic toxic substances (phenolic compounds, organic pesticides, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, detergents, etc.); The biological aspects mainly include the proliferation of bacteria, viruses, protozoa, parasitic worms, and algae in sewage discharge Function of testing report:1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report 2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems100% inspection and testing process:1. Telephone communication and confirmation of requirements 2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:1. The testing industry is fully covered, meeting different testing needs 2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate 4. Free initial testing, with no testing fees charged 5. Self service order delivery for free on-site sampling 6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China
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