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analyze the status of these indices utilize only data of environmental parameters thatÂ have been established as a key parameter determining the IKA.Â From the analysis of the mining area of PT KPC IKA with key parameters TDS, DO,Â COD, nitrogen (N) and phosphorus. (P) derived from the water quality of agriculturalÂ ecosystems, industry / mines and residential showed an index value of less well with the
category (54.6163) on the interval 40 â‰¤ IKA <60. The low index value is proportional toÂ the low value of ecosystem quality index industry / mining IKA (I) with a value of 45.82
with categories of less well on the interval 40 â‰¤ IKA <60. Consider, that the index valueÂ of ecosystem quality residential IKA (H) and agricultural ecosystem quality index IKAÂ (P) with good and excellent categories, then the ecosystem of industry / mining is theÂ focus that needs to be considered for improved management efforts.Â
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