At present, the problem of water pollution cannot be ignored. In addition to the common total phosphorus and total nitrogen exceeding the standard, the harm of heavy metal pollution in water quality should not be taken lightly. Heavy metals are metallic elements with high density and toxicity, such as lead, mercury, cadmium, chromium, etc. They exist in nature, but heavy metal levels in water bodies can increase due to the effects of human activities such as industrial activities, agriculture, and waste disposal. Excessive levels of heavy metals in water can cause serious harm to humans and ecosystems.
The purpose of heavy metal detection in water is to assess the concentration of heavy metal elements in water to protect human health and maintain the safety of the environment. To detect the weight metal content in water, the commonly used instruments are:Laboratory water quality heavy metal tester, multi-parameter water quality rapid tester, etc.
Excessive levels of heavy metals may cause direct harm to human health. Long-term exposure to high concentrations of heavy metals in water bodies can absorb these heavy metals by the human body and lead to chronic poisoning. For example, lead is toxic to the central nervous system and blood system, and long-term exposure can lead to mental retardation in children and health problems such as high blood pressure. Mercury and cadmium can also cause damage to the nervous system, kidneys and liver, and may cause cancer.
The content of heavy metals exceeding the national standard may cause harm to the ecological environment. Heavy metals in water bodies can enter soil and sediments and be absorbed by plants and animals. Heavy metal levels that exceed safe limits can accumulate in the food chain and eventually affect the entire ecosystem. For example, exposure to high levels of cadmium in fish and aquatic organisms in the water can lead to abnormal growth and population decline, upsetting the balance of aquatic ecosystems.
In addition, excessive levels of heavy metals may have an impact on agriculture and food safety. Heavy metals in water bodies can leach into irrigation water and rice fields, and then into crops and food. Excessively high levels of heavy metals can lead to excessive levels of agricultural products, posing a potential threat to human health. Therefore, monitoring the heavy metal content in water quality is essential to ensure the quality of agricultural products and food safety.