本文就環境監測采樣問題進行了分析和探討,通過對水質、daqiyijiturangdengbutongfangmiandeyinsujinxinglefenxi,jiehejiancegongzuodeshijizhuangkuang,zhenduixingzhichulezaihuanjingjiancedexianchangdangzhongxuyaoduibutongdefenxifangshiyijicaiyangdefangfade運用,對采集樣本的有效保存、環境因素對樣本采集的影響以及采樣工具對土壤成分的影響等細節方麵的問題提出科學合理的建議。現(xian)場(chang)采(cai)樣(yang)作(zuo)為(wei)環(huan)境(jing)監(jian)測(ce)的(de)重(zhong)要(yao)環(huan)節(jie),在(zai)進(jin)行(xing)現(xian)場(chang)采(cai)樣(yang)時(shi)會(hui)受(shou)到(dao)各(ge)種(zhong)各(ge)樣(yang)的(de)影(ying)響(xiang)因(yin)素(su)幹(gan)擾(rao),如(ru)何(he)確(que)保(bao)現(xian)場(chang)采(cai)樣(yang)工(gong)作(zuo)的(de)順(shun)利(li)進(jin)行(xing),保(bao)證(zheng)采(cai)樣(yang)數(shu)據(ju)的(de)準(zhun)確(que)性(xing)、完整性、精密性,很難確保環境監測工作的順利開展。
raner,jiancechudeshujukeyidiyishijianfanyingchuhuanjingzhiliangdezhuangkuang,zheyeweiguanlibumendejuecetigongchulekexueyouxiaodeyiju。duisuocaijideyangpindeyouxiaofenxiheduishujudechulifangshizhijiejuedingleshujudezhunquexing,womenxuyaobuduandeguanzhuhuanjingjiancegongzuoxianchangdexijiefangmianwenti,buduantishenghuanjingjiancedezhiliang,zheduihuanjingbaohugongzuoyouzhefeichangzhongyaodexianshiyiyi。
1、水質采樣工作
(1)采取不同的分析方式
在zai進jin行xing環huan境jing監jian測ce工gong作zuo當dang中zhong,分fen析xi方fang式shi的de運yun用yong是shi否fou正zheng確que,將jiang對dui最zui終zhong的de監jian測ce結jie果guo的de科ke學xue準zhun確que性xing產chan生sheng直zhi接jie性xing的de影ying響xiang,相xiang同tong的de監jian測ce樣yang本ben,因yin為wei其qi來lai源yuan的de形xing式shi的de差cha異yi,對dui其qi采cai取qu的de分fen析xi方fang法fa也ye有you著zhe較jiao大da的de不bu同tong。應ying當dang依yi照zhao監jian測ce項xiang目mu在zai水shui體ti或huo者zhe汙wu水shui中zhong的de濃nong度du水shui平ping、具體的執行標準的確定,選取最佳的監測方式;所檢出限應當低於執行標準值的1/5,以此來滿足監測工作可以充分滿足該監測樣本的基本要求。zaixuanqufenxifangfashangshouxianxuyaojiangkangganraonenglijinxingyouxiankaolv,caiyanggongzuorenyuanyinggaiduiqisuocaijideyangpindexingzhijinxingxiangxidelejie。biruwoguomouxiehuagongqiyezaishengchanguochengzhongshengchengdefeishuishigaolvfeishui,zaijinxingfeishuijiancedegongzuozhongcaijiCOD 樣品則需要明確標準是氯氣校正的方式來進行監測分析,這樣才可以有效的保證最終監測結果的準確性。在進行環境監測現場采樣的工作中,自然因素是千變萬化的,自然因素的變化對所采集的樣品會造成一定的影響。比如:風速、環境溫度、雨yu雪xue等deng因yin素su都dou會hui造zao成cheng環huan境jing當dang中zhong存cun在zai的de汙wu染ran物wu的de分fen布bu發fa生sheng變bian化hua。在zai對dui地di表biao水shui進jin行xing采cai樣yang工gong作zuo中zhong,才cai幾ji點dian的de分fen布bu需xu要yao在zai同tong一yi個ge土tu壤rang斷duan麵mian上shang,要yao是shi監jian測ce采cai樣yang和he河he岸an相xiang距ju較jiao近jin,那na麼me所suo造zao成cheng的de誤wu差cha的de影ying響xiang就jiu會hui更geng大da,同tong時shi伴ban隨sui季ji節jie的de變bian化hua,河he道dao的de漲zhang潮chao的de時shi間jian會hui發fa生sheng一yi定ding的de變bian化hua,這zhe就jiu需xu要yao樣yang本ben采cai集ji人ren員yuan在zai工gong作zuo之zhi前qian實shi施shi充chong分fen的de實shi地di調tiao研yan的de準zhun備bei,防fang止zhi采cai集ji到dao錯cuo誤wu時shi間jian段duan的de樣yang本ben,影ying響xiang監jian測ce的de最zui終zhong結jie果guo。為了降低環境條件和微生物的新陳代謝活動以及其他化學作用的影響,最常用的樣本保存的方式有冷藏、冷凍以及加保護劑等方式。因為地表水、汙水樣本的主要成分是存在差異的,同樣保存的條件也很難保證對同一種類型的樣品中等待監測的物質都是完全可行的。我們以某燃氣電廠的驗收監測工作為例,采集的樣本二氧化硫的濃度較低,所使用的常規的儀器檢測法(地位電解法)的(de)監(jian)測(ce)結(jie)果(guo)並(bing)不(bu)能(neng)檢(jian)測(ce)出(chu)其(qi)中(zhong)二(er)氧(yang)化(hua)硫(liu)的(de)準(zhun)確(que)濃(nong)度(du),因(yin)為(wei)化(hua)學(xue)法(fa)的(de)實(shi)際(ji)檢(jian)出(chu)限(xian)遠(yuan)遠(yuan)低(di)於(yu)儀(yi)器(qi)法(fa),這(zhe)就(jiu)需(xu)要(yao)相(xiang)關(guan)的(de)監(jian)測(ce)人(ren)員(yuan)需(xu)要(yao)選(xuan)用(yong)化(hua)學(xue)法(fa)來(lai)進(jin)行(xing)采(cai)樣(yang)和(he)分(fen)析(xi),使(shi)得(de)最(zui)後(hou)的(de)監(jian)測(ce)結(jie)果(guo)更(geng)加(jia)的(de)科(ke)學(xue)準(zhun)確(que)。采用吸收液所收集的樣品,吸收液和采集的溶液的穩定性相對較差,非常容易受到空氣的氧化、陽yang光guang的de照zhao射she以yi及ji現xian場chang環huan境jing溫wen度du的de變bian化hua產chan生sheng分fen解jie的de現xian象xiang,這zhe就jiu需xu要yao對dui樣yang本ben實shi施shi低di溫wen保bao存cun,尤you其qi是shi在zai夏xia天tian需xu要yao在zai冰bing箱xiang當dang中zhong冷leng藏zang,避bi免mian對dui所suo監jian測ce的de結jie果guo形xing成cheng誤wu差cha,在zai樣yang本ben采cai集ji工gong作zuo完wan成cheng之zhi後hou需xu要yao對dui吸xi收shou管guan實shi施shi密mi封feng保bao存cun,並bing且qie要yao盡jin快kuai對dui樣yang本ben進jin行xing分fen析xi。在(zai)出(chu)現(xian)樣(yang)品(pin)的(de)濃(nong)度(du)很(hen)高(gao),或(huo)者(zhe)是(shi)所(suo)選(xuan)取(qu)的(de)分(fen)析(xi)方(fang)法(fa)靈(ling)敏(min)度(du)較(jiao)高(gao)的(de)時(shi)候(hou),就(jiu)可(ke)以(yi)直(zhi)接(jie)使(shi)用(yong)采(cai)樣(yang)法(fa)對(dui)樣(yang)品(pin)進(jin)行(xing)采(cai)集(ji),最(zui)常(chang)用(yong)的(de)容(rong)器(qi)有(you)注(zhu)射(she)容(rong)器(qi)、塑料氣袋以及真空瓶等等。這些容器都需要進行氣密性檢測,防止在使用的過程中出現漏氣的狀況。turangcunzaidebujunyixingshiduicaiyanggongzuozaochengwuchadeyigezuizhuyaodeyuanyin,zaijinxingcaiyanggongzuozhiqianxuyaoshishixianchangdekanchayijiduixiangguanziliaojinxingshoujihefenxi,yizhaoturangdeleixing、肥(fei)力(li)等(deng)級(ji)以(yi)及(ji)地(di)形(xing)方(fang)麵(mian)的(de)因(yin)素(su),將(jiang)實(shi)際(ji)研(yan)究(jiu)的(de)範(fan)圍(wei)劃(hua)分(fen)成(cheng)若(ruo)幹(gan)個(ge)區(qu)域(yu),在(zai)每(mei)個(ge)區(qu)域(yu)中(zhong)采(cai)樣(yang)的(de)土(tu)壤(rang)都(dou)需(xu)要(yao)最(zui)大(da)限(xian)度(du)上(shang)做(zuo)到(dao)平(ping)均(jun)一(yi)致(zhi),采(cai)樣(yang)的(de)器(qi)具(ju)不(bu)能(neng)與(yu)等(deng)待(dai)采(cai)樣(yang)的(de)固(gu)廢(fei)物(wu)質(zhi)產(chan)生(sheng)反(fan)應(ying),不(bu)能(neng)讓(rang)待(dai)采(cai)工(gong)業(ye)固(gu)廢(fei)物(wu)體(ti)汙(wu)染(ran)、分層以及丟失。duizaoyindejiancegongzuozhuyaobaohanlegongyeqiyezaoyinjianceyuhuanjingmingandianzaoyindejiance。zaiduigongyeqiyejinxingzaoyinjiancedeguochengzhong,shouxianxuyaozhongdianguanzhushitiaozhatongjiqiyedeshijishengchanzhuangkuang,zhuyaoduishengchandeshebeikaijitaishuheyunxingdezhuangkuangjinxingxiangxidejilu,tongshihaixuyaotiaozhajiqizaiyunxingdejutishijianduan,xiangmeitianjibanyunxingdengfangmian。zaoshengjiancegongzuotongshihaixuyaozhuyitianqitiaojian,yaoqiuzaiwuleiyutianqixia,bingqiefengsuzai5m/s 以下的條件下來進行。(1)建(jian)立(li)和(he)完(wan)善(shan)質(zhi)量(liang)管(guan)理(li)體(ti)製(zhi)。建(jian)立(li)健(jian)全(quan)各(ge)項(xiang)質(zhi)量(liang)管(guan)理(li)製(zhi)度(du),並(bing)嚴(yan)格(ge)的(de)貫(guan)徹(che)執(zhi)行(xing),保(bao)證(zheng)各(ge)項(xiang)規(gui)章(zhang)製(zhi)度(du)落(luo)到(dao)實(shi)處(chu)。做(zuo)好(hao)監(jian)督(du)管(guan)理(li)工(gong)作(zuo),對(dui)監(jian)測(ce)現(xian)場(chang)進(jin)行(xing)不(bu)定(ding)期(qi)的(de)抽(chou)查(zha),真(zhen)正(zheng)發(fa)揮(hui)質(zhi)量(liang)監(jian)督(du)和(he)指(zhi)導(dao)的(de)作(zuo)用(yong),保(bao)證(zheng)監(jian)測(ce)現(xian)場(chang)的(de)工(gong)作(zuo)質(zhi)量(liang)。(2)做(zuo)好(hao)現(xian)場(chang)采(cai)樣(yang)人(ren)員(yuan)的(de)管(guan)理(li)。對(dui)現(xian)場(chang)采(cai)樣(yang)人(ren)員(yuan)定(ding)期(qi)進(jin)行(xing)專(zhuan)業(ye)知(zhi)識(shi)的(de)培(pei)訓(xun)和(he)學(xue)習(xi),提(ti)供(gong)監(jian)測(ce)人(ren)員(yuan)的(de)業(ye)務(wu)能(neng)力(li)。經(jing)驗(yan)豐(feng)富(fu)的(de)采(cai)樣(yang)人(ren)員(yuan)以(yi)傳(chuan)幫(bang)帶(dai)的(de)方(fang)式(shi)幫(bang)助(zhu)新(xin)員(yuan)工(gong)盡(jin)快(kuai)掌(zhang)握(wo)實(shi)踐(jian)技(ji)能(neng),以(yi)能(neng)夠(gou)盡(jin)快(kuai)參(can)與(yu)到(dao)實(shi)踐(jian)工(gong)作(zuo)中(zhong)。不(bu)定(ding)期(qi)進(jin)行(xing)業(ye)務(wu)考(kao)核(he),建(jian)立(li)合(he)理(li)的(de)激(ji)勵(li)機(ji)製(zhi),督(du)促(cu)監(jian)測(ce)人(ren)員(yuan)提(ti)高(gao)自(zi)身(shen)的(de)業(ye)務(wu)能(neng)力(li)。(1)yaobaozhengxianchangcaiyanggongzuozhiliang,shouxianbixujiaqiangduicaiyangrenyuandepeixun,chizhengshanggang。duiyumeigejiancerenwuquedingyimingxianchangfuzeren,youxianchangfuzerenzhidingcaiyangjihuabingzuzhishishi。yaoqiuxianchangfuzerenyaochongfenlejiegaijiancerenwudemudeheyaoqiu,qingchujiancedianweibushejizhouweiqingkuang,shuxigongkuanghezhafangfa、采樣方法、樣品保存要求。(2)weileshizhiliangkongzhigongzuogenghaodirongruhuanjingjiancequanguochengzhong,nengjiaokuaidefaxiancunzaicuowudehuanjie,youliyuduibufuheguifandegongzuojinxingjiuzheng,shixianchangjiancegongzuozhubuguifanhua,bianzhixianchangjiancezhiliangjiandujianzhabiao。zhiliangjianduyuanjiehegongzuoshijizhidingguifandeyangpinbianhaochengxuheyangpinliuzhuanchengxu,quebaoyangpindeweiyixingbiaoshi,tongshibaozhengcaijidaodeyangpinfenxiqijianzufenhehuaxuexingzhibufashengbianhua。(3)現場監測人員要依照規範進行操作,做好現場記錄,詳細記錄監測用儀器設備編號、監測點位、采樣位置、采樣時間、氣象條件、工gong況kuang負fu荷he及ji淨jing化hua設she施shi運yun行xing情qing況kuang等deng,並bing附fu現xian場chang監jian測ce點dian位wei圖tu或huo流liu程cheng圖tu,保bao證zheng溯su源yuan性xing。同tong時shi,每mei批pi樣yang品pin都dou應ying做zuo全quan程cheng序xu平ping行xing空kong白bai樣yang,必bi要yao時shi采cai集ji現xian場chang―實驗室質控樣品進行質控核查。(4)每台監測用儀器與設備均應設立檔案,粘貼唯一性標識;依法對儀器與設備進行檢定或校準,並在合格有效期內使用;製定儀器與設備的年度核查計劃,並按計劃執行;定期對儀器與設備進行維護保養,同時填寫維護保養記錄;製定儀器與設備的管理程序和操作規程,使用時做好使用記錄;meitaiyiqiyushebeiyouzerenrenfuzerichangguanli,jianduyiqiyushebeideguifanxingcaozuo,baozhengyiqiyushebeichuyuwanhaozhuangtai,zaijianceshiyunxingzhengchang。xianchangcaiyangwanchenghou,jiancerenyuanyaoduiyiqishebeijinxingqingli、檢jian查zha,並bing與yu同tong組zu人ren員yuan做zuo好hao對dui接jie,核he對dui儀yi器qi的de數shu量liang及ji編bian號hao,做zuo好hao入ru庫ku記ji錄lu。現xian場chang監jian測ce人ren員yuan應ying當dang熟shu悉xi儀yi器qi的de構gou造zao,具ju備bei小xiao故gu障zhang的de排pai除chu能neng力li,不bu能neng排pai除chu的de應ying及ji時shi在zai儀yi器qi箱xiang體ti上shang貼tie標biao簽qian並bing注zhu明ming故gu障zhang情qing況kuang,儀yi器qi送song回hui時shi,直zhi接jie交jiao由you儀yi器qi室shi管guan理li人ren員yuan;儀器室管理人員對儀器進行初步檢修,確定排除故障後儀器入庫,初步檢修無法排除故障的,應負責聯係儀器廠家盡快維修、保養,並認真填寫維修記錄,確保所有儀器均處於良好的運行狀態。(5)為wei了le保bao證zheng質zhi量liang控kong製zhi的de效xiao果guo,現xian場chang監jian測ce的de采cai樣yang記ji錄lu是shi複fu現xian采cai樣yang情qing景jing的de一yi個ge重zhong要yao途tu徑jing,在zai環huan境jing監jian測ce現xian場chang采cai樣yang工gong作zuo完wan成cheng以yi後hou,收shou樣yang人ren還hai要yao負fu責ze對dui現xian場chang采cai樣yang記ji錄lu進jin行xing檢jian查zha,保bao證zheng樣yang品pin實shi際ji狀zhuang態tai與yu信xin息xi記ji錄lu的de一yi致zhi性xing。樣yang品pin實shi際ji狀zhuang態tai與yu記ji錄lu不bu一yi致zhi,采cai樣yang記ji錄lu信xin息xi不bu全quan時shi,收shou樣yang人ren不bu得de接jie收shou樣yang品pin。另ling外wai,在zai檢jian查zha工gong作zuo完wan成cheng以yi後hou,要yao對dui監jian測ce過guo程cheng進jin行xing一yi定ding的de評ping估gu。評ping估gu內nei容rong包bao括kuo:監測內容是否正確,樣品、ziliaoshifouwanzheng,shifoudadaozhiliangkongzhimubiao。tongguoduizhexieyinsudezonghepinggu,nenggoujishifaxianxianchangjiancezhongcunzaidewentibingjishijinxingjiejue。zaiduijianceguochengjinxingjianzhahepinggudejichushang,wanchengxianchangjiancezongjiedebianxie,duiyuxianchangjiancexiangguandegexiangneirong,baokuojiancefangan、準備工作、現場監測取樣、樣yang品pin及ji資zi料liao的de收shou集ji等deng進jin行xing分fen析xi,總zong結jie出chu整zheng個ge監jian測ce工gong作zuo好hao的de經jing驗yan和he不bu足zu,以yi便bian在zai今jin後hou的de監jian測ce工gong作zuo中zhong加jia以yi保bao持chi和he改gai進jin,以yi便bian於yu提ti高gao環huan境jing監jian測ce工gong作zuo的de質zhi量liang。
對dui所suo采cai集ji的de樣yang品pin的de有you效xiao分fen析xi和he對dui數shu據ju的de處chu理li方fang式shi直zhi接jie決jue定ding了le數shu據ju的de準zhun確que性xing,這zhe就jiu需xu要yao不bu斷duan的de關guan注zhu環huan境jing監jian測ce工gong作zuo現xian場chang的de細xi節jie方fang麵mian問wen題ti,不bu斷duan提ti升sheng環huan境jing監jian測ce的de質zhi量liang,改gai善shan當dang前qian我wo國guo環huan境jing狀zhuang況kuang,同tong時shi對dui人ren們men生sheng活huo質zhi量liang和he良liang好hao的de社she會hui發fa展zhan氛fen圍wei都dou起qi到dao至zhi關guan重zhong要yao的de促cu進jin作zuo用yong,所suo以yi不bu斷duan完wan善shan和he實shi施shi環huan境jing監jian測ce工gong作zuo是shi對dui我wo國guo社she會hui快kuai速su發fa展zhan的de一yi種zhong有you力li保bao障zhang。