What methods do cars use to solve exhaust emission problems?

[LeDeclan]

Cars solve exhaust emission problems through the following methods: 1. Replace spark plugs and clean the throttle with cleaning agent; 2. Adjust the ignition timing, delay the ignition time, which will significantly reduce the nitrogen oxide content in the exhaust; 3. Before filling out forms and paying fees at the inspection station while waiting for inspection, ensure the car is in an idling and warmed-up state; 4. Use an automobile exhaust purifier; 5. Clean the three-way catalytic converter and oxygen sensor, and clean the air filter. The impacts of automobile exhaust emissions are: 1. Lead in the exhaust enters internal organs, disrupting the acid-base balance and causing lead poisoning; 2. Carbon monoxide in the exhaust hinders blood absorption and oxygen delivery in the human body, harming health and producing carcinogenic substances; 3. Inhalable particulate matter irritates the eyes and lungs, increasing the risk of respiratory diseases.

[LaNoah]

I've been driving for nearly twenty years and have a deep understanding of exhaust issues. Nowadays, cars mainly address this through technological advancements, such as more efficient engine combustion. Technologies like turbocharging and direct fuel injection ensure gasoline burns more completely, reducing exhaust particulates. The exhaust pipe is equipped with a catalytic converter that transforms harmful gases like carbon monoxide into carbon dioxide and water. Diesel vehicles also have a DPF (Diesel Particulate Filter) to trap soot. Regular maintenance is essential—changing the air filter and oxygen sensor periodically and ensuring the exhaust system doesn't leak can significantly reduce emissions. If you notice unusual smells or thicker exhaust, it's best to get it checked immediately to prevent worsening pollution. Overall, combining hardware improvements with diligent maintenance can effectively control vehicle emissions, making them more environmentally friendly.

[LaJesse]

As an average car owner, I often think about how to make my vehicle's exhaust cleaner. Starting with driving habits, gentle acceleration and avoiding sudden braking can save fuel and reduce emissions. Using high-quality gasoline instead of opting for cheaper, inferior fuel prevents incomplete combustion that harms both people and the environment. Regular maintenance is crucial—changing air filters and engine oil keeps the engine healthy; inspecting exhaust system components like the catalytic converter or sensors for wear and repairing them promptly prevents blockages and leaks. In summer, avoid excessive air conditioning—keeping the car comfortably cool is enough. With recent fuel price hikes, I've become more mindful of economical driving, which saves money and is eco-friendly. These small adjustments combined can significantly reduce exhaust emissions, helping to keep the community's air cleaner.

[StKira]

I believe policy-driven measures are highly effective in addressing vehicle exhaust issues. Governments set emission standards like China VI, forcing automakers to install exhaust treatment devices such as catalytic converters. Annual inspections mandate tailpipe testing, with penalties including fines or production halts for non-compliance. Local subsidies promote electric vehicles and new energy alternatives. Vehicle owners are urged to conduct regular system checks and maintenance. Society-wide supervision helps reduce high-emission older vehicles on roads. This systematic approach effectively reduces pollution, making urban air cleaner to breathe.