专题与综述-189-晋江入海口水环境调查及防治策略分析王国发(福建省东海检测技术有限公司,福建泉州362000)摘要:在晋江入海口(鲟浦)断面设置3个水质监测点位,通过手工采样监测法,考察丰水期和枯水期晋江入海口溶解氧、pH值、COD、氨氮、总磷、高锰酸盐等指标的变化情况,充分了解晋江入海口的水环境状况。调查结果表明:入海口水质的主要超标因子是氨氮和总磷,其中氨氮超标最为严重,溶解氧也出现过超标的情况;枯水期的溶解氧浓度、总磷浓度明显高于丰水期,氨氮浓度则表现为丰水期大于枯水期的特点。关键词:晋江入海口;水环境;污染调查;水质监测中图分类号:TS5文献标志码:ADOI:10.20025/j.cnki.CN10-1679.2023-15-63InvestigationoftheWaterEnvironmentattheJinjiangEstuaryandAnalysisofPreventionandControlStrategiesWangGuofa(FujianDonghaiTestingTechnologyCo.,Ltd.,Quanzhou362000,China)Abstract:ThreewaterqualitymonitoringpointsweresetupatthesectionoftheJinjiangestuary(Xunpu).Throughmanualsamplingmonitoringmethod,changesindissolvedoxygen、pHvalue、COD、ammonianitrogen、totalphosphorus、permanganateandotherindicatorsattheJinjiangestuaryduringhighandlowwaterperiodswereinvestigatedtofullyunderstandthewaterenvironmentconditionsattheestuary.Thesurveyresultsshowthatthemainexceedingfactorsofwaterqualityattheseainletareammonianitrogenandtotalphosphorus,withammonianitrogenexceedingthestandardthemostseverely,anddissolvedoxygenalsoexceedingthestandard;theconcentrationofdissolvedoxygenandtotalphosphorusinthedryseasonissignificantlyhigherthanthatinthewetseason,whiletheconcentrationofammonianitrogenshowsacharacteristicofbeinghigherinthewetseasonthaninthedryseason.Keywords:Jinjiangestuary;waterenvironment;pollutioninvestigation;waterqualitymonitoring引言晋江是泉州市主要的生产、生活用水来源,流域人口密集,上游特色农业产业发达、下游大中小企业密集,是打造流域生态保护和高质量的样板区[1]。然而,由于气候变化和人类活动等多重因素的影响,晋江流域生态问题依然突出,晋江流域水生态环境保护任重远道。根据《泉州市生态环境状况公报》[2],2004~2019年晋江流域水质总体状况较好,13个国、省控监测监测断面水质的III类达标率达100%,I、II类水质达...