What are the manifestations of poisoning in special professional operations?
In high-risk industries, various forms of poisoning can occur during work processes. When workers are exposed to harmful substances in the workplace, it is referred to as occupational poisoning. Depending on the exposure duration and concentration, poisoning can be acute, chronic, or subacute. Acute poisoning occurs after a large amount of poison enters the body quickly, while chronic poisoning results from long-term, excessive exposure. Subacute poisoning falls between the two, occurring after short-term but high-level exposure. Different poisons have distinct toxicological effects, so their symptoms vary widely. Some, like lead and manganese, mainly cause chronic issues under normal working conditions, while others, such as methane, carbon monoxide, and chlorine, often lead to acute poisoning. Due to this diversity, it's challenging to list all poisons, so here is a general overview. (1) Chronic nervous system intoxication is common in certain occupational exposures. Early symptoms may include fatigue, irritability, and mild psychiatric changes, which can improve once the individual is no longer exposed. However, prolonged exposure to heavy metals like lead and manganese can damage both motor and sensory nerves, leading to peripheral neuropathy. Tremors are often seen in manganese poisoning or after severe carbon monoxide poisoning. In extreme cases, brain swelling can occur, causing serious neurological complications. (2) Inhalation of certain gases can lead to suffocation or respiratory damage. Prolonged exposure to irritating gases may result in chronic inflammation of the upper respiratory tract, including rhinitis, nasal septum perforation, pharyngitis, and bronchitis. High concentrations of these gases can cause more severe conditions like chemical pneumonia or pulmonary edema, significantly affecting lung function. (3) Many toxins affect the blood system, causing anemia, bleeding, hemolysis, methemoglobinemia, or even leukemia. Lead, for example, can cause hypochromic anemia, while benzene and trinitrotoluene may suppress bone marrow function, leading to low white blood cell and platelet counts. In severe cases, aplastic anemia may develop. Carbon monoxide binds with hemoglobin, forming carboxyhemoglobin, which reduces oxygen delivery to tissues. (4) Toxicants that affect the digestive system can cause a range of issues, from stomach pain and vomiting to severe gastrointestinal bleeding. Mercury salts and arsenic, when ingested in large amounts, can lead to nausea, abdominal cramps, and hemorrhagic gastroenteritis. Lead and cesium poisoning may cause persistent colic, along with mouth ulcers and gum swelling. Long-term exposure to acid mists can erode tooth enamel, while fluoride exposure may result in dental fluorosis, characterized by discolored and brittle teeth. Certain industrial chemicals, like carbon tetrachloride, can also damage the liver, causing acute or chronic liver disease. (5) The urinary system is also vulnerable to toxic effects. Substances like mercury, uranium, arsine, and ethylene glycol can cause kidney damage, leading to conditions such as acute renal failure, nephrotic syndrome, or tubular dysfunction. (6) Other industrial poisons can harm the skin, eyes, and bones. Contact with chemicals like chromium or niobium may cause skin ulcers, while long-term exposure to tar, asphalt, or arsenic can lead to skin discoloration or even cancer. Corrosive substances like acids and alkalis can cause eye irritation or severe burns. Methyl bromide, organic mercury, and methanol poisoning may result in optic nerve damage and blindness. Some toxins are also linked to cataracts. China Labor Insurance Network Quartz glass is made by melting a variety of pure natural quartz (such as crystal, quartz sand, etc.). The coefficient of linear expansion is extremely small, which is 1/10-1/20 of ordinary glass, and has good thermal shock resistance. It has high heat resistance, often used at temperatures between 1100 and 1200 degrees Celsius, and short-term temperatures of up to 1400 degrees Celsius. Quartz glass is mainly used in laboratory equipment and refining equipment for special high-purity products. Because of its high spectral transmission, it is not damaged by radiation (other glass will be dark after being irradiated by radiation), so it is also an ideal glass for spacecraft, wind tunnels and spectrophotometer optical systems. Quartz Glass,Optical Fiber Quartz Glass Rod,Glass Measuring Beaker,Quartz Glass Slid Dongguan Haikun New Material Co., Ltd. , https://www.hkceram.com