Overview of Hazardous Substances
In our living environment, industrial production and many other fields, there are various kinds of harmful substances. Once these substances enter the ecological environment or the human body, they will pose a serious threat to ecological balance and human health. The following will introduce 15 common harmful substances in detail.
Polycyclic aromatic hydrocarbons —— Anthracene
Anthracene belongs to polycyclic aromatic hydrocarbon compounds. It is commonly used in industry to manufacture products such as dyes and plastics. However, its hazards cannot be underestimated. Anthracene has potential carcinogenicity and can enter the human body through the respiratory tract, skin and other routes. Once it enters the human body, it will accumulate in the body, interfering with the normal physiological and metabolic processes of the human body. Long - term exposure may lead to serious diseases such as lung cancer and skin cancer. Moreover, anthracene is difficult to degrade in the environment and will remain in the soil and water for a long time, causing lasting damage to the ecological environment.
Aromatic amines — 4,4'-Diaminodiphenylmethane
4,4'-Diaminodiphenylmethane is an aromatic amine. It is widely used in industries such as rubber and plastics. However, it is a potent carcinogen that can cause various cancers such as bladder cancer and liver cancer. During the production and use process, if proper protection is not taken, its dust or vapor can be inhaled by the human body or enter the body through skin contact. Once it enters the human body, it will bind to the DNA in human cells, leading to gene mutations and thus causing cancer. In addition, it is also highly toxic to aquatic organisms in the environment, which can lead to the death of aquatic organisms and the imbalance of the ecosystem.
Metal chlorides —— Cobalt dichloride
Cobalt(II) chloride is a metal chloride. It is commonly used in fields such as humidity indicators and electroplating. Cobalt(II) chloride is toxic to a certain extent and can enter the human body through the respiratory tract, digestive tract and other routes. After entering the human body, it will affect the human hematopoietic system, leading to diseases such as anemia. At the same time, it will also damage the human nervous system, causing symptoms such as headache, dizziness and insomnia. In terms of the environment, cobalt(II) chloride will pollute soil and water bodies, affecting the growth of plants and the survival of aquatic organisms.
Arsenic oxides - Diarsenic pentaoxide and Diarsenic trioxide
Arsenic pentoxide and arsenic trioxide are both oxides of arsenic, and they are well-known highly toxic substances. Arsenic trioxide is what we commonly call arsenic. These two substances are used in industries such as metallurgy and pesticides. After entering the human body, they will combine with enzymes in human cells, causing the enzymes to lose their activity and thus disrupting the normal physiological functions of the human body. Ingesting a small amount may lead to acute poisoning symptoms such as vomiting, diarrhea, and abdominal pain, while a large amount can be fatal. In the environment, they will enter the soil and water bodies along with wastewater and waste residues, polluting water sources and soil and affecting the growth and quality of crops.
Chromates — Sodium dichromate
Sodium dichromate is a chromate. It is widely used in industries such as electroplating and leather. Sodium dichromate has strong oxidizing properties and toxicity. It can enter the human body through skin contact, inhalation through the respiratory tract and other routes. After entering the human body, it will cause severe irritation and damage to the skin, respiratory tract, digestive tract, etc. of the human body. Long - term exposure may also lead to diseases such as lung cancer. In the environment, sodium dichromate will contaminate soil and water bodies, causing serious damage to the ecological environment.
Musk compounds —— Musk xylene, 5-tert-butyl-2,4,6-trinitro-m-xylene (musk xylene)
Internal xylene musk is a type of musk substance. It is commonly used in products such as perfumes and cosmetics. Although it can provide a long - lasting fragrance, it has bioaccumulation properties. It can accumulate in organisms, and as it passes through the food chain, its concentration will gradually increase. Long - term exposure to internal xylene musk may affect the human endocrine system, leading to endocrine disorders and affecting reproductive functions. Moreover, it is difficult to degrade in the environment and will remain in the environment for a long time, posing a potential threat to the ecological environment.
Phthalates — Dibutyl Phthalate (DBP), Bis (2-ethylhexyl) phthalate (DEHP) and Benzyl butyl phthalate (BBP)
Dibutyl phthalate, bis(2 - ethylhexyl) phthalate and butyl benzyl phthalate all belong to phthalate substances. They are widely used in industries such as plastics and toys to increase the flexibility of plastics. These substances have endocrine - disrupting properties and can mimic human hormones, interfering with the human endocrine system. Long - term exposure can affect human reproductive development, leading to problems such as a decrease in the number of male sperm and precocious puberty in females. In the environment, they can migrate from plastic products into the environment, polluting soil and water bodies and causing harm to the ecological environment.
Brominated flame retardants - Hexabromocyclododecane and its isomers
Hexabromocyclododecane (HBCDD) and its isomers are a type of brominated flame retardant. It is widely used in industries such as textiles and electronics to improve the flame retardant properties of products. However, it is persistent, bioaccumulative, and toxic. It can remain in the environment for a long time and accumulate in organisms through the food chain. It can affect the thyroid function of the human body and interfere with the human endocrine system. Meanwhile, it is also highly toxic to aquatic organisms, leading to the death of aquatic organisms and the destruction of the ecosystem.
Chlorinated paraffins – Short-chain chlorinated paraffins
Short-chain chlorinated paraffins are a type of chlorinated paraffins. They are used in industries such as plastics and rubber. Short-chain chlorinated paraffins are bioaccumulative and persistent. They can be widely distributed in the environment and accumulate in organisms through the food chain. They can affect the human immune system and reproductive system, leading to problems such as reduced immunity and reproductive dysfunction. In terms of the environment, they can contaminate soil and water bodies, causing long-term damage to the ecological environment.
Organotin compounds —— Tributyltin oxide Bis(tributyltin) oxide (TBTO)
Tributyltin oxide is an organotin compound. It is commonly used in fields such as ship antifouling paints. Tributyltin oxide is highly toxic. It has extremely high toxicity to aquatic organisms, which can impede the growth and development of aquatic organisms such as shellfish and reduce their reproductive capacity. In terms of the human body, it can enter the human body through skin contact, inhalation through the respiratory tract and other routes, affecting the human nervous system and immune system, and causing symptoms such as headache, fatigue and decreased immunity.
Arsenates – Lead hydrogen arsenate and Triethyl arsenate
Both lead arsenate and triethyl arsenate belong to arsenate substances. Lead arsenate was once widely used as a pesticide. They are highly toxic. After entering the human body, they can cause damage to multiple organs in the body, such as the liver and kidneys. In the environment, they can contaminate soil and water bodies, affect the growth and quality of crops, and at the same time, they are also highly toxic to aquatic organisms and can damage the aquatic ecosystem.