Investigation on dust pollution and pneumoconiosis incidence in a steel enterprise.
10.3760/cma.j.cn121094-20210204-00082
- Author:
Jia Nan XU
1
;
Lang ZHOU
2
;
Ru Yu XUE
3
;
Lei HAN
2
;
Li Zhuang XIE
2
;
Meng YE
4
;
Heng Dong ZHANG
2
;
Bao Li ZHU
5
Author Information
1. Policy Research Office, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210028.
2. Occupational Disease Prevention and Control Institute, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009.
3. School of Public Health, Nantong University, Nantong 226000.
4. Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050.
5. Director's Office, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009.
- Publication Type:Journal Article
- Keywords:
Age at diagnosis;
Dust concentration;
Mining platform;
Pneumoconiosis;
Survival time
- MeSH:
Humans;
Middle Aged;
Aged;
Aged, 80 and over;
Child;
Adolescent;
Young Adult;
Adult;
Incidence;
Coal Mining;
Steel;
Retrospective Studies;
Pneumoconiosis/diagnosis*;
Dust;
Occupational Exposure/adverse effects*
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2022;40(10):737-741
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To analyze the change trend of underground dust concentration, the incidence and survival status of pneumoconiosis patients, and provide reference for improving the working environment of dust-exposed workers and the prevention and treatment of pneumoconiosis patients in the future. Methods: In February 2020, a retrospective investigation was conducted on the dust data of underground mining operations in a steel enterprise in Jiangsu Province from 1991 to 2019, and the case data of patients diagnosed with pneumoconiosis from 1956 to 2019 were collected. The time trends of the number of pneumoconiosis patients and dust concentration, the stage of pneumoconiosis and survival status of patients were analyzed. Results: From 1956 to 2019, a total of 241 patients with pneumoconiosis were diagnosed in the steel enterprise. From 1991 to 2019, the annual average dust concentration in the mine showed a downward trend as a whole. Compared with the transportation platform (14.28%, 1447/10132) , the average dust concentration exceeding rate of the mining platform (43.68%, 8415/19263) was significantly higher (χ(2)=2674.84, P<0.01) . The average age of pneumoconiosis patients was (73.54±10.42) years old, and the average working age of dust exposure was (21.41±8.68) years, of which 85 cases (35.27%) survived and 156 cases (64.73%) died. The main type of pneumoconiosis was silicosis (90.46%, 218/241) , and the main stage of pneumoconiosis was the stage I (96.68%, 233/241) ; The higher the stage of pneumoconiosis, the younger the diagnosis age (P<0.01) . The average survival time of patients was (27.264±1.982) years, and the median survival time was 28 years. The cumulative survival rates of patients with pneumoconiosis in different diagnosis time periods were significantly different (χ(2)=35.57, P<0.01) . Conclusion: The improved dust-proof measures have a significant effect on reducing the concentration of underground dust. We need to focus on the dust control of underground mining platforms and the treatment of patients with stage Ⅲ pneumoconiosis.
