Full
Outline
Noise pollution in mining areas is a prominent problem in the construction of green mines, and achieving precise and continuous monitoring of noise is crucial for environmental protection and occupational health. To address the the problem of insufficient timeliness and continuity in traditional manual noise monitoring applications in mining areas, taking a typical mining area in Hunan Province as the research background, eight functional areas including open-pit mines, beneficiation plants, transportation work areas, and living areas were selected to carry out 24-hour continuous manual and automatic noise monitoring. Linear regression and bias analysis were conducted to verify the reliability of automatic monitoring technology by comparing over 190 sets of equivalent sound level data per hour. The results show that the automatic monitoring and manual monitoring results are highly consistent, with linear regression slopes ranging from 0.983 5 to 1.055 4, correlation coefficients (r) above 0.997, and absolute deviations controlled within ±1 dB. It is fully verified that the automatic noise monitoring system has good applicability and accuracy in complex mining environments. The monitoring data also reveals that the noise level in the production area (70 - 85 dB) is significantly higher than that in the living area(<55 dB), and after conducting prevention and control measures, the sound level has been reduced by about 20−30 dB compared to the source intensity, with significant prevention and control effects. Finally, noise management suggestions are put for forward for the mine.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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