heavy metals pollution 中文意思是什麼

heavy metals pollution 解釋
重金屬污染
  • heavy : adj （馬）患哮喘病的。adj 1 重的 （opp light） 有重量的；重型的；裝備重型武器的。2 大的；大量的，...
  • metals : 超氦元素
  • pollution : n. 1. 污染（作用）。2. 腐敗，墮落。
  1. The order of four soil biochemical intensity being sensitive to heavy metal pollution indicated as : nitrification > nitrogen fixation > decomposition of cellulose > ammonification. however, soil microbial biomass c : n ratio increased with the increasing of heavy metals level

    幾種生化作用強度的下降順序為硝化作用固氮作用纖維素分解強度氨化作用；但土壤微生物生物量碳氮比則隨著重金屬污染水平的升高而增加。
  2. Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time

    隨后以這幾種重金屬作為實驗毒物，以鯽魚為實驗動物，應用環境生物技術、火焰原子吸收分光光度法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及其安全濃度評價、混合重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等，全面和系統地研究了水環境中重金屬暴露對魚類的毒性影響，初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分子等各水平層次的影響，為制定漁業生產上預防性的管理措施提供科學依據，及時避免或減輕重金屬污染對水生生態系統造成的損害。
  3. The assessment on the pollution of heavy metals in sediment of guangxi inshore

    廣西近岸海域沉積物中重金屬污染評價
  4. Metallothionein ; water quality ; pollution ; heavy metals of body ; accumulation ; biomarker ; toleranc

    金屬硫蛋白水質污染體內重金屬積累生物標志物耐受力
  5. There were no pollution of heavy metals, oil and phenol in wu - lin area. improved water quality can be noticed with the absence of blue green algae,

    水質中無重金屬（鋅除外） 、油脂或酚的污染，而鋅的微量增加應與施肥及季節變化有關。
  6. Some soil microbial activity parameters and heavy metals contents were analyzed by principal component method. the results showed that the critical levels of cadmium and lead in red clayed soil and red sandy soil were 15 mg. kg - 1 and 0 - 15. mg. kg - 1, 200 mg. kg - 1and 200 - 400 mg. kg - 1, respectively. soil microbial populations and functional diversities of microbial community have changed to some extent under the stress of cadmium and lead pollution

    在本文中我們將供試紅壤的上述微生物活性指標和2種重金屬含量進行主成分因子分析，其結果得出，紅黃泥和紅砂泥的土壤微生物活性鎘脅迫的臨界承載量分別為15mg ? kg ~ 1和0 15 ? mg ? kg ~ 1 ；鉛脅迫的臨界承載量分別為200mg ? kg ~ （ - 1 ）和200 400mg ? kg ~ （ - 1 ） 。
  7. These toxic substance include pesticides, heavy metals and its compound materials, organic and inorganic matters, micro - organisms, oily materials, plant nutrients, various discarded garbage and radioactive substances, etc. the sources of the water pollution mainly come from unprocessed factory, domestic and hospital sewages

    這些有害物質包括農藥重金屬及其化合物等有毒物質，有機和無機化學物質，致病微生物油類物質植物營養物，各種廢棄物和放射性物質等。水污染的來源主要是未加處理的工業廢水生活廢水和醫院污水。
  8. With the purpose of better understanding some weak links in this subject, we comprehensively and systematically compared the effects of some typical inhibitors and their different combined ways in inhibiting cd bioavailability in purple soil, further studied the laws and affecting factors of cd ' s transfer and transformation in soil - plant system, revealed the mechanisms inhibitors function, and explored the practicable inhibitor prescriptions and their usage. the results are expected to provide reliable techniques for controlling cd pollution of agricultural soils in chongqing and it is also significant to ameliorate soils polluted by other kinds of heavy metals. comprehensive methods including pot experiment, laboratory culture experiment, kinetic and thermodynamic adsorption - desorption experiment were adopted in this study, and the acidified purple soil was chosen to test, considering that cd is highly active in this soil

    本研究針對重慶市農業土壤的污染狀況，選取鎘活性較高的酸化紫色土為供試土壤，採用盆栽試驗、培養試驗、化學熱力學與動力學吸附試驗相結合的方法，系統研究和比較多種調控劑及其不同組合方式對鎘生物活性的效應，並揭示鎘在土壤?植物系統中的遷移轉化規律及影響因素，進一步分析調控劑的作用機理，探尋具有實際應用價值的調控劑配方及合理使用的方法，這不僅可以為重慶市農業土壤鎘污染的防治提供可靠的技術保障，而且對于其它重金屬污染的治理也有一定的理論意義。
  9. 01 ). poisonous metals such as cd, pb, cr and ni were mainly distributed in scale and gill. for fishes, the content of heavy metals in the edible part were far below pollution evaluation standards for marine organism and healthy standards for human consumption, which was safe to be eaten

    魚類不同組織器官對各種重金屬積累能力明顯不同，有毒重金屬元素cd 、 pb 、 cr和ni主要分佈於鱗片和鰓中，其食用部分中各重金屬含量都遠低於「海洋生物污染評價標準」和「人體衛生消費標準」 ，具安全的食用價值。
  10. This paper summarized the progress of studies on the environmental pollution of heavy metals in lake sediment

    摘要綜述了湖相沉積物重金屬環境污染研究進展。
  11. Spef ; chai river ; sediment ; heavy metals ; pollution

    次生相富集系數法柴河沉積物重金屬污染
  12. The results indicated that all streams in guangzhou have been polluted by heavy metals in different degree. chigang stream, haizhu stream and shangxia stream are the most serious. industry activities are responsible for the pollution mainly

    表明廣州市河涌已受到不同程度的重金屬污染，受污染最嚴重的是赤崗涌、海珠涌和棠下涌，工業活動是造成污染的主要原因。
  13. On the basis of previous studies, the paper presents a comprehensive review and summary on the influence of sediment to water quality in the yellow river, highlighting four issues : 1 the influence of the sediment on pollutant behavier, 2 the relationship between sediment - associated natural organic matter and water quality parameters of oxygen - consuming organic pollutants and its influence on the assessment of the water quality in the yellow river, 3 the relationship between the heavy metal background values of the sediment and the water quality parameters of the heavy metals and its influence on the assessment of the pollution of the yellow river, 4 the influence of sediment ? ? containing much carbonates in the yellow river on the water quality and the monitoring of the water quality

    黃河是世界上罕見的多泥沙河流，泥沙與水相互作用對黃河水質產生顯著影響。根據以往研究工作，對黃河泥沙與水質的關系問題作全面的總結評述和展望，著重於4個問題： 1黃河泥沙對污染物行為的影響2黃河泥沙中的天然有機質與黃河耗氧有機物水質參數的關系和對污染評價的影響3黃河泥沙中的本底量重金屬與黃河重金屬水質參數的關系和對污染評價的影響4黃河泥沙中的碳酸鹽對水質和對水質監測研究的影響。
  14. On the basis of previous studies, the paper presents a comprehensive review and summary on the influence of sediment to water quality in the yellow river, highlighting four issues : 1 the influence of the sediment on pollutant behavier, 2 the relationship between sediment - associated natural organic matter and water quality parameters of oxygen - consuming organic pollutants and its influence on the assessment of the water quality in the yellow river, 3 the relationship between the heavy metal background values of the sediment and the water quality parameters of the heavy metals and its influence on the assessment of the pollution of the yellow river, 4 the influence of sedimentcontaining much carbonates in the yellow river on the water quality and the monitoring of the water quality

    黃河是世界上罕見的多泥沙河流，泥沙與水相互作用對黃河水質產生顯著影響。根據以往研究工作，對黃河泥沙與水質的關系問題作全面的總結評述和展望，著重於4個問題： 1黃河泥沙對污染物行為的影響2黃河泥沙中的天然有機質與黃河耗氧有機物水質參數的關系和對污染評價的影響3黃河泥沙中的本底量重金屬與黃河重金屬水質參數的關系和對污染評價的影響4黃河泥沙中的碳酸鹽對水質和對水質監測研究的影響。
  15. Heavy metals pollution and their potential ecological risk in the sediment of hailing bay

    海陵灣沉積物中重金屬污染及其潛在生態危害
  16. In this paper, the heavy metals pollution and its characteristics in soil, the harm to the environmental and the chemical - behavior of heavy metals in soil are introduced. the heavy metals element beckground value in soil is discussed

    介紹了土壤重金屬的污染及其特點，重金屬對環境危害和在土壤中的化學行為，最後論述了土壤重金屬元素的背景值。
  17. The soil in copper - ore - tailings reservoir was compared with that in reference lands to find out the differences between them in physical and chemical natures and in heavy metals pollution

    通過合理選擇不同對照地，從土壤的理化性質、被污染程度比較，為尾礦庫復墾的土壤改良提供依據。
  18. Study on influencing of ph value to heavy metals pollution and fathering techniques of wastewater in tailings reservoir

    值對重金屬污染的影響及治理技術研究
  19. Evaluation to heavy metals pollution in agricultural soil in northern suburb of xuzhou city

    徐州市北郊農業土壤重金屬污染評價
  20. Thus it can be seen that soil microbial biomass carbon, microbial biomass nitrogen, soil microbial biomass c : n ratio and microbial metabolism quotient are very sensitive to heavy metals pollution in red soils

    可認為，微生物生物量碳、基礎呼吸、微生物代謝商、脫氫酶活性及土壤微生物生物量c n比是敏感反映cd 、 pb污染狀況的生物學指標。
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