Diiselpartiklite

Diiselpartiklite, often referred to as diesel particulate matter (DPM) or soot, are microscopic solid particles primarily generated from the incomplete combustion of diesel fuel. These particles consist mainly of carbon, but can also contain adsorbed substances such as sulfates, nitrates, and heavy metals, depending on the fuel composition and combustion conditions. They are a significant component of diesel exhaust emissions and are a major concern for air quality and public health.

The size of diiselpartiklite varies, but a substantial fraction falls within the range of fine particulate matter (PM2.5), meaning they have a diameter of less than 2.5 micrometers. Their small size allows them to penetrate deep into the lungs, and in some cases, enter the bloodstream, leading to various respiratory and cardiovascular health problems. Exposure to diiselpartiklite has been linked to increased risks of asthma, bronchitis, heart attacks, strokes, and premature death.

Modern diesel engines are equipped with diesel particulate filters (DPFs) designed to capture these particles before they are released into the atmosphere. DPFs work by trapping soot in a porous filter. Periodically, the trapped soot is burned off through a process called regeneration, either passively at high exhaust temperatures or actively through controlled injection of fuel. Despite the effectiveness of DPFs, some particulate matter can still be emitted, particularly during cold starts or if the DPF is not functioning optimally. Regulatory standards worldwide aim to limit diiselpartiklite emissions from diesel vehicles.