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首頁> 外文學位 >Assessment of Louisiana's Fish Tissue Mercury Levels, Sportfish Consumption, Methylmercury Intake and Potential Risk: Implications for Monitoring, Advisory Development and Outreach.
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Assessment of Louisiana's Fish Tissue Mercury Levels, Sportfish Consumption, Methylmercury Intake and Potential Risk: Implications for Monitoring, Advisory Development and Outreach.

機譯：路易斯安那州魚組織汞含量，運動魚消費量，甲基汞攝入量和潛在風險的評估：對監(jiān)測，咨詢開發(fā)和推廣的意義。

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Exposure to methylmercury has been associated with deficits in fetal and childhood neurodevelopment. Louisiana has some of the highest fish methylmercury levels in the country; yet exposure through local fish consumption remains largely untracked. The ultimate goal of this study was to obtain data in support of recommendations to optimize monitoring, advisory development and outreach for a high exposure population with unique seafood consumption patterns. The objectives of this study are to characterize fish tissue mercury levels and local fish consumption, and estimate potential mercury intake. To achieve these objectives, I conducted the first tissue mercury levels and local fish consumption, and estimate potential mercury intake. To achieve these objectives, I conducted the first comprehensive analysis of Louisiana's fish tissue mercury data (n=14,344); and analyzed data from the first known population-based survey of Louisiana's recreational fishers (n=1774). These data were integrated to estimate mercury intake for survey respondents; and prioritize species, areas and populations of potential concern. Fish tissue mercury levels ranged from 0.001 ppm (the detection limit) to 5.904 ppm for king mackerel; with an overall geometric mean of 0.218 ppm. Forty-four percent of all samples had mercury levels above the U.S. EPA's methylmercury fish tissue criterion of 0.3 ppm for sportfish. The highest normalized fish mercury levels were observed in Pearl and Calcasieu basins. In the year prior, 95% of respondents reported eating sportfish. Respondents ate a mean of four total fish meals per month, of which, approximately half were sportfish. Over half of all sportfish meals (54%) were caught in the Gulf of Mexico or bordering brackish areas. The most frequently consumed sportfish species were red drum, speckled trout, catfish, bass, crappie, bream and flounder. Species with the largest number of at-risk fishers based on mean fish tissue mercury levels were drum (primarily red drum), speckled trout, catfish, crappie, bass and bream. Populations with the largest proportion of at-risk fishers based on mean fish tissue mercury levels included women of childbearing age; African-Americans; fishers from north Louisiana; and fishers with Hook and Line, and Basic fishing licenses. Results were used to make recommendations to optimize monitoring, advisory development and outreach activities.
機譯：甲基汞暴露與胎兒和兒童神經(jīng)發(fā)育缺陷有關(guān)。路易斯安那州的魚甲基汞含量最高。然而，通過當?shù)佤~類消費所造成的暴露仍大體無法追蹤。這項研究的最終目標是獲得數(shù)據(jù)以支持建議，以針對具有獨特海產(chǎn)品消費模式的高接觸人群優(yōu)化監(jiān)測，咨詢開發(fā)和推廣。這項研究的目的是表征魚類組織中的汞含量和當?shù)佤~類消費量，并估計潛在的汞攝入量。為了實現(xiàn)這些目標，我進行了第一批組織汞含量和當?shù)佤~類消費量的估算，并估算了潛在的汞攝入量。為了實現(xiàn)這些目標，我對路易斯安那州的魚組織汞數(shù)據(jù)進行了首次綜合分析（n = 14,344）；并分析了來自路易斯安那州的休閑垂釣者的首次已知的基于人口的調(diào)查（n = 1774）的數(shù)據(jù)。這些數(shù)據(jù)被整合以估計受訪者的汞攝入量；并優(yōu)先考慮可能引起關(guān)注的物種，地區(qū)和種群。鯖魚的魚組織汞含量范圍從0.001 ppm（檢測極限）到5.904 ppm。總幾何平均值為0.218 ppm。所有樣品中有百分之四十四的汞含量高于美國環(huán)保署對運動魚的甲基汞魚組織標準（0.3 ppm）。在珍珠和Calcasieu盆地中觀察到最高歸一化魚類汞含量。在前一年，有95％的受訪者稱他們吃了運動魚。受訪者平均每月總共吃四頓魚粉，其中約一半為sport魚。在所有的運動魚粉中，超過一半（54％）是在墨西哥灣或咸淡的地區(qū)捕獲的。最常食用的鮭魚種類是紅鼓，斑鱒魚，cat魚，鱸魚，cr魚，和比目魚。根據(jù)平均魚類組織中汞含量的高風險漁民數(shù)量最多的種類是鼓（主要是紅鼓），斑鱒，鱒魚，cat魚，鱸魚，鱸魚和鯛魚。根據(jù)平均魚類組織汞含量水平，高危漁民比例最大的人群包括育齡婦女；非洲裔美國人;來自路易斯安那州北部的漁民；以及具有“鉤和線”以及基本捕魚許可證的漁民。結(jié)果用于提出建議，以優(yōu)化監(jiān)控，咨詢開發(fā)和外展活動。

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  • 作者

    Katner, Adrienne Lee.;

  • 作者單位

    University of California, Los Angeles.;

  • 授予單位 University of California, Los Angeles.;
  • 學科 Health Sciences Public Health.
  • 學位 D.Env.
  • 年度 2011
  • 頁碼 164 p.
  • 總頁數(shù) 164
  • 原文格式 PDF
  • 正文語種 eng
  • 中圖分類
  • 關(guān)鍵詞

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