pollution of heavy metals 中文意思是什麼
pollution of heavy metals
解釋
重金屬污染-
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。 -
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。 -
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 -
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。 -
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。 -
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。 -
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。 -
Synthetic assessment on pollution level and potential ecological risk of heavy metals in kaozhou bay
考洲洋重金屬污染水平與潛在生態危害綜合評價 -
Pollution of heavy metals in surface sediments from huaihe river jiangsu section and its assessment of potential ecological risk
淮河沉積物中重金屬污染及潛在生態危害評價 -
Phytoremediation has been regarded as a suitable technique for the pollution control of heavy metals contaminated soils
摘要隨著對重金屬超積累植物研究的加深，用植物提取修復技術來改良重金屬污染的土壤已逐步進人實用階段。 -
Based on the principle of sedimentology and the environmental behavior characteristics of heavy metals, the index of geoaccumulation igeo is used to evaluate heavy metal pollution in sediments in the benxi section of the taizi river. the results show that heavy metal pollution in the sediments are serious. the main heavy metal pollutions are copper, lead, zinc, cadmium and mercury
論述了查爾酮合酶基因chs在植物防禦反應中與病原物的相互關系，探討了與查爾酮合酶因誘導表達相關的順式作用元件和反式作用因子及其dna -蛋白質間的相互作用，闡明其在植物抗病性防禦反應中的重要作用。 -
Pollution and assessment of heavy metals in huangpu river sediments
黃浦江沉積物重金屬的污染及評價 -
Soil samples from chongqing and surrounding areas indicate the existence of varying concentrations of heavy metals which may potentially become sources of pollution
"土壤中存在不同程度的重金屬"並不能斷言為"污染" .某些水溶性重金屬有流失入水源的可能性才能被考慮成有潛在性的污染源。原文不夠嚴密，有危言聳聽之慮。 -
Assessment of pollution of heavy metals in tanluo ecological area of nanning city
南寧壇洛生態規劃區土壤重金屬污染評價 -
Pollution of heavy metals in urban soils of typical industrial and surrounding residential area in nanjing city
北京石景山工業區附近一個污染土壤剖面的磁學研究 -
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。 -
The safe concentrations of zn, cd and cr to crucian were far exceeded the standard. the short - term accumulation and distribution in young crucian tissue of mixed secure concentrations of heavy metals cu, zn, cr and cd pollution was studied. the results showed that associated interaction of the four heavy metals was synergistic effect of accumulated toxic
研究了安全濃度的混合重金屬cu 、 zn 、 cr 、 cd污染在鯽魚幼體組織中短期的積累和分佈，實驗結果表明： cu 、 zn 、 cd和cr四種重金屬之間的聯合作用為毒性劇增的快同作用。 -
It mainly discussed the research contents and the research methods in this field, and the evaluation methods of the environmental pollution of heavy metals in lake sediment
介紹了該領域研究的主要研究內容、主要研究方法和湖相沉積物重金屬污染的評價方法。 -
Pollution and control of heavy metals in fly ashes from municipal solid waste incinerator
城市生活垃圾焚燒飛灰中重金屬污染與控制 -
The amounts of heavy metals accumulated in the aquatic plants were also related to the types and degrees of the pollution of the creeks
水生植物對重金屬的富集還與河流的污染類型和污染程度有關：工業園區附近河流水生植物集鎮居民區村級居民區。
分享友人