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Outline
To investigate the correlation between emissions and environmental quality in industrial parks, thereby achieving refined management and control constrained by the environmental quality baseline, this paper proposes a comprehensive method for determining the maximum allowable emission increments in industrial parks based on the dynamic equilibrium of PM2.5 concentration impacts. The approach balances emission reductions in surrounding buffer zones against increased emissions within the parks, creating development space through emission mitigation in peripheral areas. Case studies were conducted in industrial parks of Tianfu, Shuangliu, and Longquan district, Chengdu. Evaluations demonstrate that buffer zone emission reductions lowered PM2.5 concentrations in park stations by 2.6, 1.7, and 2.1μg/m3, respectively. Based on current and target concentrations at park stations, the maximum allowable concentration increases were calculated as 1.9, 1.5, and 2.3μg/m3. Derived from simulated PM2.5 concentrations and sequential emission increments, the composite response functions quantified the maximum allowable emission increases at 21.5, 73.7, and 200.1t, respectively. Emission reduction and increasing balance verifications showed that implementing these maximum increments resulted in concentration changes of -0.18, -0.44, and -2.50μg/m3 at control stations, confirming no deterioration of air quality. This methodology provides a novel approach for refined park management, enabling industrial development through peripheral emission reductions without compromising environmental quality, thereby creating sustainable growth space for industrial parks.
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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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