Dustiness

Dust content is a sanitary indicator that reflects the degree of air pollution with suspended dust particles. It is expressed in milligrams per cubic meter of air (mg/m3). Dust levels can be high in industrial areas where large amounts of dust are released into the atmosphere, as well as in cities and other populated areas where road transport is the main source of pollution.

Dust is one of the main factors affecting human health. Dust can contain various chemicals such as heavy metals, organic compounds and other pollutants that can cause various respiratory, eye and skin diseases. In addition, dust can reduce visibility, which can be dangerous for car drivers and other road users.

To measure dust levels, special devices are used - dust meters. They can be either stationary or mobile. Stationary dust meters are installed at a certain height and measure dust levels over a certain period of time. Mobile dust meters can be used to monitor dust levels on certain sections of the road or in industrial areas.

In addition, to reduce dust levels, various measures are being taken, such as installing filters for emissions from enterprises, using environmentally friendly modes of transport, landscaping areas and other measures. However, despite all efforts, dust levels continue to remain high in some regions of the world, which requires further research and development in the field of environmental protection.

air dustiness is a sanitary indicator that characterizes air pollution with dust. It can be measured in milligrams of dust mass per cubic meter of air. Dust pollution in populated areas can be caused by various sources: transport, construction work, industrial production, as well as natural processes. Air pollution is influenced by many factors. These can be large cities, industrial zones, factories, factories, etc. The main task of air cleanliness indicators is to assess and determine the overall dust content of the air and the volume of pollutants. Using these data, the current state of the air basin is assessed and future changes are predicted. The high rate of dust emission into the atmosphere leads to the destruction of the ozone layer, as ultraviolet radiation is absorbed by molecules that form ozone. Dust slows down its destruction after sunlight. This increases the level of UV radiation in the upper atmosphere and causes skin cancer. Factors of increased dust levels can affect many environmental processes. For example, changed weather conditions can lead to the transformation of ash into air currents, changes in the normal propagation pattern, their influence will make it difficult to diagnose the growth of air waves. Likewise, dust can change the refractive index and absorption of light in the atmosphere, which can have different effects on how light is distributed over the surface and over the oceans. Dust content depends on the type of soil and the accumulation of vegetation: the more there is, the less dust there will be on the surface. Another important factor is climate. For example, deserts have higher levels of dust in the air because the wind does not destroy the particles. If they are in an open space, they gradually accumulate. But in the forests there are trees, and their foliage prevents dust from penetrating into the air. There are no major sources of emissions, so the airspace is free of harmful substances. Determining dust content gives an idea of ​​the presence of harmful and environmentally hazardous substances in the urban environment. Unfortunately, it is often not carried out by government air monitoring services. It happens that dust pollution has to be controlled by scientific and environmental organizations that monitor the state of the environment. Today, there are two main methods of dust control: stationary monitoring of air masses and route monitoring. In the first case, samples are taken directly from the atmosphere, while in the second, measurements are taken from a moving vehicle. There is also a control method, it is used in places where there are signs of increased levels of pollution (for example, near roads, industrial areas). It is based on determining the content of gases and smoke using