Abstract An approach to complex assessment of permissible pollutant loads for aquatic and terrestrial ecosystems has been proposed. The approach is based on evaluation of the contaminant removal (assimilation) or inflow rate on the basis of the difference between the mass flow rates at the lower and upper gauging stations of the selected river section. The removal (assimilation) or inflow rate is considered to be the current pollutant load on the river ecosystem (CL R ). The maximum permissible pollutant inflow between the stations calculated on the basis of its maximum permissible concentration (MPC) is the maximum permissible load (MPL R ). The difference between the MPL R and the CL R is considered the remainder of the pollution limit of the river ecosystem or the permissible load. The atmospheric deposition rate of the pollutant is considered its current load on the whole geosystem (CL G ). The sum of the pollutant removal rate due to forest felling and the pollutant assimilation/inflow rate in the river, divided by the area of the drained portion of the water catchment area, is considered the maximum permissible load on the geosystems (MPL G ). The difference between the MPL G and CL G is considered the remainder of the pollution limit of the terrestrial ecosystem or the permissible load.

中文翻译：

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以色楞格河流域为例，对淡水和陆地生态系统的允许污染物负荷进行综合评估

摘要 提出了一种对水生和陆地生态系统的允许污染物负荷进行复杂评估的方法。该方法的基础是根据所选河段的下部和上部测量站的质量流量之间的差异对污染物去除（同化）或流入速度进行评估。去除（同化）或流入速率被认为是河流生态系统的当前污染物负荷（CL R ）。根据其最大允许浓度（MPC）计算的站间最大允许污染物流入量是最大允许负荷（MPL R ）。MPL R 和CL R 之间的差值被认为是河流生态系统污染限值或允许负荷的剩余部分。污染物的大气沉降率被认为是其对整个地球系统的当前负荷（CL G ）。由于森林砍伐造成的污染物去除率和河流中污染物同化/流入率的总和除以集水区排水部分的面积，被认为是地质系统上的最大允许负荷 (MPL G )。MPL G 和 CL G 之间的差异被认为是陆地生态系统污染限值或允许负荷的剩余部分。