North China Oil & Gas promotes full coverage of Artemisia sphaerocephala allergy protection project

Recently, the staff dormitories of Hangjinqi and Yiqi of North China Oil and Gas Branch newly installed 338 sets of fresh air systems.
So far, the company has installed 1985 sets of fresh air systems in the northern part of Hubei, and front-line staff offices and dormitories.
The coverage rate of the fresh air system reached 100%
.

The northern part of Hubei is located at the intersection of the southeastern edge of the Mu Us Desert and the northern edge of the Loess Plateau in northern Shaanxi.
The local area is wind-proof and sand-fixing.
Desert vegetation mainly composed of Artemisia sphaerocephala and Salix sylvestris is commonly planted.
The pollen size of the vegetation is 19-24 microns.
It is easy to be inhaled into the body and has sensitization
.

During the pollen period from July to September each year, employees in the work area will experience symptoms such as sneezing and runny nose one after another, and some employees have breathing difficulties, and in severe cases, they may also cause asthma, which greatly affects the work and life of employees
.

Since 2017, the Safety Research Institute of the Academy of Engineering has selected 57 offices and staff dormitories in the Northern Hubei Industrial Zone to conduct experiments on the fresh air system to filter Artemisia sphaerocephala pollen
.

Through the construction of a fresh air system, the removal rate of Artemisia sphaerocephala pollen in employee offices and dormitories has reached 76.
17%, which is effective in alleviating Artemisia sphaerocarpa allergy
.

(Li Jing)