Explanation
The cancer-causing potential is generally considered to be greater in emissions from (A) Diesel-operated vehicles compared to petrol-operated vehicles, CNG-operated vehicles, and ethanol-operated vehicles.
Diesel engines produce higher levels of particulate matter (PM) and nitrogen oxides (NOx) compared to petrol engines. The combustion of diesel fuel produces fine particles, including diesel exhaust particles (DEPs), which can contain harmful substances such as polycyclic aromatic hydrocarbons (PAHs) and other carcinogens. These particles are small enough to penetrate deep into the lungs and can potentially increase the risk of cancer and other health problems.
While emissions from petrol-operated vehicles, CNG-operated vehicles, and ethanol-operated vehicles also have their own environmental and health impacts, diesel emissions are generally recognized as having a higher cancer-causing potential due to the specific composition of diesel exhaust particles. It's important to note that emissions can vary depending on factors such as vehicle technology, fuel quality, and emission control systems in place.
