Passive atmospheric aerosol individual sampler

Abstract

The invention relates to a passive atmosphere aerosol personal sampler, comprising a shell, a sampling film arranged inside the shell, an external ring arranged inside the shell and a built-in base positioned inside the external ring, wherein, the external ring, the built-in base and the shell are arranged concentrically; the external ring is connected with the shell in a first axial direction and can rotate around the first axial direction freely relative to the shell; the built-in base is connected with the external ring in a second axial direction and can rotate around the second axial direction freely relative to the external ring; the first axial direction and the second axial direction are in the same plane and are orthogonal with each other. The whole of the sampler consists of three parts of the shell, the external ring and the built-in base. The three parts form a universal joint structure. When the shell is in any angle, the built-in base can be kept at the vertically outward position. The sampler has simple structure and is portable.

Description

technical field [0001] The invention relates to a passive personal sampler for collecting atmospheric aerosol. Background technique [0002] Atmospheric aerosols are an important form of air pollution. In addition to containing substances that are toxic to the human body (such as PB, AS and other toxic metal elements), aerosols may also form secondary pollutants (various sulfates, nitrates) during atmospheric transmission and adsorb various substances that affect human health. Good harmful substances (such as organic halogen compounds, bacteria and viruses, etc.). Atmospheric aerosols usually have a very small size (less than 100 microns), so they are not easy to settle in the atmosphere, and can be suspended in the air for a long time, thus causing long-term effects on human health. [0003] The main impacts of aerosols on human health are: inhalation through the respiratory tract and allergies. Due to the small particle size of the aerosol, it can penetrate deep into th...

AI Technical Summary

Problems solved by technology

Existing individual microenvironment samplers are generally based on active sampling methods. Although the structure and weight of the sampler have been greatly improved, it is still inconvenient to carry samples for a long time.

However, currently domestic passive samplers are generally used for fixed-point sampling, and there is no sampler specially used for personal portable sampling

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