Purpose

In this study, Multi-criteria decision making (MCDM) approach was applied to assess and evaluate the heavy metals (Cr, Mn, Co, Ni, Cu, Zn, As, Cd, Pb and Hg) pollution in Dilovası region (one of the largest industrial area in Turkey).

Methods

The heavy metal content of 10 different locations have been evaluated and these locations are ranked according to their metal contents by using PROMETHEEGAIA method, which is one of the pairwise comparisons MCDM methods. PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluation) method was used to rank the locations according to their heavy metal content and GAIA (Geometrical Analysis for Interactive Aid) method was used to analyse and show the relations between alternatives (locations) and criteria (heavy metal).

Results

Analysis indicated that location d4 (small harbor of Hereke) is the most polluted especially by Pb, Cd, Cr and As. The location d8 is the least polluted area which is the farthest places from the harbors and industrialized zones.

Conclusions

The ranking results clearly showed that the most contaminated locations are wastewater discharge points and small ports. The study also showed that PROMETHEE/GAIA method is very helpful to analyse environmental problems.

中文翻译：

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使用 PROMETHEE/GAIA 方法对水中重金属污染的多标准评估和站点排名。

目的

在本研究中，采用多标准决策 (MCDM) 方法评估和评价 Dilovası 地区（其中之一）的重金属（Cr、Mn、Co、Ni、Cu、Zn、As、Cd、Pb 和 Hg）污染土耳其最大的工业区）。

方法

已经评估了 10 个不同位置的重金属含量，并使用 PROMETHEEGAIA 方法对这些位置进行排序，该方法是成对比较 MCDM 方法之一。PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluation) 方法用于根据其重金属含量对位置进行排序，并使用 GAIA (Geometrical Analysis for Interactive Aid) 方法分析和显示替代品（位置）与标准（重）之间的关系金属）。

结果

分析表明，d4 位置（Hereke 的小港口）污染最严重，尤其是 Pb、Cd、Cr 和 As。位置 d8 是污染最少的区域，是距离港口和工业区最远的地方。

结论

排名结果清楚地表明，污染最严重的地点是废水排放点和小型港口。研究还表明，PROMETHEE/GAIA 方法对分析环境问题非常有帮助。