北方环境
北方環境
북방배경
INNER MONGOLIA ENVIRONMENTAL SCIENCES
2012年
2期
156-158
,共3页
单因子指数%综合污染指数%秩相关系数%水质评价
單因子指數%綜閤汙染指數%秩相關繫數%水質評價
단인자지수%종합오염지수%질상관계수%수질평개
single-factor index%Integrated pollution index%Rank correlation coefficient%Water quality evaluation
采用单因子指数、综合污染指数和秩相关系数法对海勃湾断面＂十一五＂期间的水质状况和变化趋势进行了分析。结果表明：海勃湾断面水质基本维持在Ⅲ类水平,部分时段达到Ⅳ类或Ⅴ类;水体水质受到轻污染,水质一般;从历年的变化趋势看,水质呈现不显著好转趋势。
採用單因子指數、綜閤汙染指數和秩相關繫數法對海勃灣斷麵＂十一五＂期間的水質狀況和變化趨勢進行瞭分析。結果錶明：海勃灣斷麵水質基本維持在Ⅲ類水平,部分時段達到Ⅳ類或Ⅴ類;水體水質受到輕汙染,水質一般;從歷年的變化趨勢看,水質呈現不顯著好轉趨勢。
채용단인자지수、종합오염지수화질상관계수법대해발만단면＂십일오＂기간적수질상황화변화추세진행료분석。결과표명：해발만단면수질기본유지재Ⅲ류수평,부분시단체도Ⅳ류혹Ⅴ류;수체수질수도경오염,수질일반;종력년적변화추세간,수질정현불현저호전추세。
The water quality and trends of HaiBoWan section in Inner Mongolia during the ＂eleventh five＂ is analyzed using single-factor index,Integrated pollution index and rank correlation coefficient method in the paper.The results show that： the water quality of HaiBoWan section is maintained basicly at Ⅲ levels,and part time is maintained at Ⅳlevels or Ⅴ levels;and water quality is lightly polluted,.water quality is in general level;the change from the trend over years,no significant better trends are showed of water quality.
