What are the hazards of automobile exhaust?
2 Answers
Automobile exhaust hazards include: 1. Particulate matter: Particulate matter has strong adsorption capacity and can adsorb various metal dust and carcinogens. If the air is filled with large amounts of particulate matter, it may cause dermatitis and conjunctivitis in mild cases, and even lead to cancer in severe cases; 2. Carbon monoxide: Excessive exhaust emissions contain carbon monoxide, which weakens the oxygen-carrying function of blood when inhaled by humans, causing hypoxic damage; 3. Greenhouse effect: The greenhouse effect is a global hazard, and automobile exhaust emissions are one of the major contributors. The greenhouse effect leads to global warming, which in turn causes a series of problems such as glacier melting and species changes.
As an urban office worker, I commute by car every day, but the issue of car exhaust is really troubling. The carbon monoxide and nitrogen oxides in the exhaust are extremely harmful. Inhaling them directly can trigger asthma and lung diseases, and in severe cases, even worsen heart conditions. A relative of mine was diagnosed with chronic coughing at the hospital, which was attributed to poor air quality. What's worse, particulate matter like PM2.5 can penetrate deep into the lungs, making children and the elderly particularly vulnerable and increasing the risk of asthma. With more hazy days in the city, outdoor activities are becoming less feasible. Long-term exposure may even lead to cancer, affecting daily quality of life. The government advises reducing exhaust emissions, and as individuals, we should take public transport more often or switch to electric vehicles to avoid these risks.
