Effect of bromine on environment

BromineIt is an indispensable chemical product in our life, which is widely used in various industries and provides great help for our development.But the harm of bromine is also relatively large.Today, the editor will introduce the impact of bromine on the environment.
　　1. health hazards
Invasion route: inhalation, ingestion, percutaneous absorption.
Health hazards: the skin, mucous membranes have a strong stimulating effect and corrosion. In mild poisoning, there is general weakness, chest tightness, dry cough, nausea or vomiting; when inhaled more, there is headache, dyspnea, severe cough, tears, eyelid edema and spasm. Some appear bronchial asthma, bronchitis or pneumonia. A few people have allergic dermatitis, and high concentrations of bromine can cause skin burns and even ulcers. Long-term inhalation, in addition to mucosal irritation symptoms, but also accompanied by neurasthenia syndrome.
　2. toxicological data and environmental behavior
Acute toxicity: LC50750ppm,9 min (mouse inhalation)
Dangerous characteristics: with strong oxidation. Contact with flammable substances (such as benzene) and organic substances (such as sugar, cellulose, etc.) will react violently and even cause combustion. Reacts strongly with reducing agents. Very corrosive.
Combustion (decomposition) product: hydrogen bromide.
　　Emergency Monitoring Method of 3. Site
gas detection tube method
　　4. laboratory monitoring methods
Gas chromatography, with reference to Handbook of Analytical Chemistry (Volume 4, Chromatographic Analysis), Chemical Industry Press
Methyl orange colorimetric method; silver bromide turbidimetric method "determination of harmful substances in the air of chemical enterprises", Chemical Industry Press
　　5. environmental standards
The maximum allowable concentration of harmful substances in the air of the former Soviet Union workshop 0.5mg/m3 [skin]
The maximum allowable concentration of harmful substances in drinking water in the former Soviet Union (1975) is 0.2mg/L
Japanese Aquatic Water Quality Standard 1.0 ppm
　　6. emergency treatment disposal methods:
　1) Emergency treatment for leakage
Evacuate the personnel from the leakage pollution area to the safety area, and prohibit irrelevant personnel from entering the pollution area. It is recommended that the emergency treatment personnel wear positive pressure self-contained breathing apparatus and chemical protective clothing specially recommended by the manufacturer (completely isolated). Do not touch the leakage directly, and stop the leakage under the condition of ensuring safety. Mixed with sand, dry lime or soda ash, collected and transported to the waste treatment site for disposal. It can also be washed with a large amount of water, and the diluted wash water is put into the waste water system.
　　2) Protective measures
Respiratory protection: You must wear a gas mask or an air-supplied helmet when you may come into contact with vapors or smoke. In case of emergency rescue or escape, it is recommended to wear self-contained breathing apparatus.
Eye protection: wear chemical safety goggles.
Protective clothing: wear work clothes (made of anti-corrosion materials).
Hand protection: wear rubber gloves.
Other: After work, shower and change clothes. Store clothes contaminated with poison separately and use them after washing. Maintain good hygiene habits.
　　3) First-aid measures
Skin contact: remove contaminated clothing, rinse with flowing water for 10 minutes or rinse with 2% sodium bicarbonate solution. If there is a burn, seek medical treatment.
Eye contact: immediately lift the eyelids and rinse with flowing water or saline for at least 15 minutes. See a doctor.
Inhalation: quickly leave the scene to fresh air. Give oxygen when breathing is difficult. When breathing stops, give artificial respiration immediately. Seek medical attention.
Ingestion: When the patient is awake, gargle immediately and drink milk or egg white. Seek immediate medical attention.
Fire extinguishing methods: carbon dioxide, sand.
The above is the impact of bromine on the environment, I hope to be able to help everyone.