In fact, most substances in the human body will cause harm, that is, some substances that exist in the human body itself, once exceeded, it will also affect the health problems of the body, let alone some substances that the human body is not adapted to. In this chapter, we will learn about toxic pollutants in water with MODI.

When you see the word “toxic”, you must think that it is harmful to the human body. Toxic pollutants actually refer to the accumulation of a certain amount after entering the organism, which can make biochemical and physiological function changes in body fluids and tissues, cause temporary or lasting pathological states, and even endanger life. The same toxic pollutant has a close relationship with its existing form, and its toxicity will be different with different forms.

So What are the Toxic Pollutants in the Water?

Toxic pollution in water can be divided into the following categories:

· Heavy metals: mercury, cadmium, chromium, arsenic, lead, cobalt, barium, etc. Among them, mercury, cadmium, arsenic and other hazards are relatively large. Heavy metals are generally not easy to disappear in nature, and will be enriched through the food chain. In addition to directly acting on the human body and causing diseases, some metals may also promote the development of chronic diseases.

· Inorganic anions, mainly NO2-, F-, CN- ions. NO2- is a carcinogen. (Hydrogen cyanide, a highly toxic substance, mainly comes from the discharge of industrial wastewater);

· Organic pesticides, green and stupid. We know that there are many kinds of pesticides, which can be divided into organophosphorus pesticides and organochlorine pesticides. Phosphorus is highly toxic, but it is easy to degrade and accumulate, so the impact on the ecosystem is not obvious. In addition, polychlorinated biphenyls are highly toxic, fat soluble, easy to be absorbed by biological, chemical properties are very stable, difficult to and acids, bases, oxidants and other effects, have a high degree of heat resistance, in 1000 ~ 1400℃ high temperature to completely decompose, so it is difficult to degrade in water bodies and organisms;

· Carcinogens. Carcinogens are generally divided into three categories: thick cyclic aromatic hydrocarbons (PAHs), such as 3, 4-benzopyrene; Heterocyclic compounds, such as aflatoxin; Aromatic amines, such as methyl, ethylaniline, benzidine, etc.

· General organic matter. For example, there are more than 2000 kinds of phenolic compounds, the simple is phenol, are highly toxic substances; Nitrile compounds are also toxic, of which the environmental impact of acrylonitrile is more obvious.

About Water Quality Online Monitor Manufacturer Introduction

Hangzhou Modi-Tech is a manufacturer of water quality online monitoring instrument, the main products: water heavy metal online analyzer, biological toxicity online analyzer, Escherichia coli online analyzer, COD online analyzer, aniline online analyzer in water and so on.