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These uncontaminated explants showed that morphogenetic potential were 70%-75% and each responding explant had 1.2-1.4 shoots formation on MS medium supplemented with 2 mg/L NAA and 16 mg/L BA. Moreover, adding antibiotics (100 mg/L Rifampicin and 100 mg/L Gentamycin) to solidify MS contained 3% galactose were tested, results showed the lowest contamination rates were 20% and 1.0-1.2 shoots were regenerated per responding explant. The antibiotic treatments with 100 mg/L Rifampicin and 100 mg/L Gentamycin could reduce internal contaminants, while the addition of antibiotics into medium in vitro culture led to phototoxic phenomena of axillary explants, morphogenetic potential lost and the growth of regenerant was also inhibited.

以100 mg/L Rifampicin+100 mg/L Gentamycin或100 mg/L Rifampicin+100 mg/L Gentamycin+150 mg/L Streptomycin组合浓度处理者,具有显著降低污染率的效果分别为60%及50%;克服内生菌污染而建立初代无菌培养之腋芽培植体,则以100 mg/L Rifampicin或以100 mg/L Rifampicin+100 mg/L Gentamycin处理者,芽体再生率最高70%-75%,惟平均每一腋芽培植体芽体增殖数仅1.2-1.4个;另在醣种类及浓度与抗生素试验,显示100 mg/L Rifampicin+100 mg/L Gentamycin之抗生素浓度组合添加至含3g/L半乳糖的培养基,显著降低污染率至20%;但未污染之培植体,形态发生潜能低至40%以内,可反应生长之培植体芽体形成数也仅达1-1.2个之间,再生芽体之生长也显现抑制现象。

The pollution caused by the washoff of urban stormwater runoff from surface is the critical part of the non-point pollution. With deepened the control of the point pollution, it is serious day by day that the receiving water is polluted by urban stormwater runoff.

城市雨水径流冲刷地面而引起的污染是面源污染的重要部分,随着点源污染治理的深入,城市雨水径流对受纳水体的污染己日益凸现。

The disserving of cooking oil fume pollution was introduced,according to current oil fume pollution manage of present condition. Every kind of technology was analyzed.

阐述了餐饮业油烟污染的危害;结合目前油烟污染治理的现状,对各种油烟污染治理的技术进行了简述和比较分析,得出餐饮业油烟污染治理重点。

The results show that 42.86% topsoil samples are polluted by Cadmium, soil synthesis pollution index is moderate, Cadmium pollution degree of topsoil correlate with the environment of sampling sites. The results also show that exchangeable Cd, carbonate-bound Cd, organic-bound Cd and residual Cd are found in all soil samples except for Fe-Mn oxide-bound Cd. Furthermore, the concentration of exchangeable Cd and carbonate-bound Cd, both which have high biological validity, is high. Humus has a certain correlation with exchangeable Cd, organic-bound Cd and residual Cd, and has no obvious correlation with other chemical speciations. Any chemical speciation of Cd has no obvious correlation with pH and total Fe of soil samples. Cadmium in topsoil can be eluviated by acid solution, the quantity of Cadmium eluviated by redistilled water is little. With the rise of pH of eluviating solution, eluviated Cadmium quantity decrease. For the same soil sample, the lower pH value of eluviating solution is, the more fast the Cadmium is eluviated, and the more thequantity of Cadmium is eluviated.

研究结果表明:成都市表生土壤样中有42.86%受镉污染,镉综合污染水平达中度污染,成都市表生土壤镉污染程度与采样点周围环境表现出一定的相关性;除铁锰氧化物结合态镉在部分土壤样中未检出外,所有土壤样均含有可交换态镉、碳酸盐结合态镉、有机结合态镉、残留态镉,且生物有效性较高的可交换态镉和碳酸盐结合态镉占总镉量比例较高;成都市表生土壤中的腐殖质与可交换态镉、有机结合态镉、残留态镉有一定相关性,与碳酸盐结合态镉、铁锰氧化物结合态镉相关性不显著;各形态镉与土壤pH值和全铁的相关性均不显著;土壤中的镉可被酸溶液淋出,重蒸馏水淋出镉量十分微小;随着淋滤液pH值的升高,土壤样的镉淋出量下降,且0~5小时时段的镉淋出量占镉总淋出量比例下降,5~30小时时段的镉淋出量占镉总淋出量的比例上升,对同一土壤样而言,酸度大的淋滤液比酸度小的淋滤液淋出镉速度更快,淋出镉量更大。

Salmonella contamination more than three quarters in a year was found in 3 hatcheries. Two of them closed after then. Five hatcheries were contaminated with fungus for more than three quarters in a year.

以3季以上污染为标准,有3个孵化室受沙门氏菌的污染,有2个受沙门氏菌污染的孵化室关闭;5个孵化室受霉菌的污染

Based on international front and hotspot in atmospheric chemistry and aerosol study, considering domestic characteristics of atmospheric pollution, the laboratory has included main research areas below: atmospheric chemical reaction, aerosol chemistry, photochemical pollution, acid deposition chemistry, atmospheric brown cloud, emission characteristics and emission factors of PM and VOCs emitted from various sources, indoor air pollution and its control techniques, health effect of particulate matters, and so on.

研究室的主要研究方向始终瞄准国际大气化学和气溶胶研究和发展的前沿和热点,结合中国大气污染的自身特点,在大气化学反应、气溶胶化学、光化学污染、酸沉降化学、大气棕色云、各种污染源颗粒物和 VOCs 的排放特征和排放因子、室内空气污染及其控制、大气污染的人体健康效应等方面进行实验研究,在上述各方面得出具有国际先进水平的研究成果,建立国内领先和国际先进的学术研究和实验科学体系,确保研究室的学术地位和知名度,与国外相关的研究机构保持同步的发展态势并建立平等的交流机制。

Coal combustion type air pollution is the major type of air pollution. However, in some large cities of China, air pollution has gradually changed from the conventional coal combustion type to the mixed coal combustion/motor vehicle emission type.

从全国范围看,我国的大气污染类型以煤烟型为主;在部分大中城市,大气污染类型已由单纯的煤烟型污染向煤烟污染和机动车尾气混合型发展,构成双重负担。

A: The Law consists of seven chapters 66, on supervision and management of air pollution control system, the major legal systems, control burning air pollution, pollution prevention and control emissions from motor vehicles and vessels as well as the prevention and control exhaust, dust and odor pollution key measures, and legal responsibilities have taken a more clear and specific provisions.

答:该法共7章66条,对监督和空气污染控制系统管理,主要的法律制度,控制燃烧空气污染污染防治和机动车辆和船只以及预防和控制排放量控制废气,尘和恶臭污染的关键措施和法律责任采取了更加明确和具体的规定。

We combine the United States, Canada vehicles environmental protection experts of experience and the low-pollution fuel-efficient pooling of technical information and a unique creative people to complete the first generation of the locomotive near Lingwu Ran carburetor. Qinghua University in 1984 and the Power Machinery Institute, performance measurement paper results were 100 percent more fuel efficient the excellent results, Qinghua University and published the results of the study report to various academic institutions in 1985 and the China Productivity Center for Real vehicle road test, that the carburetor is more fuel efficient and less polluting effect of the case. 1991 was the economy minister of praise known as the "locomotive engine cleaner revolutionary breakthrough."

我们结合美、加的车辆环保专家之经验,并汇集各项低污染省油的技术资料及国人独特的创见完成第一代近零污染之机车用化油器。1984年与清华大学动力机械研究所合作,性能测纸结果获得省油100%以上之优异成效,清华大学并以此项研究成果发表实验报告至各大学术机构;1985年与中国生产力中心作实车路测,更证明该项化油器之省油及低污染功效属实。1991年获经济部部长赞喻为&低污染机车引擎革命性的大突破&。

Leaf samples from three evergreen species (southern magnolia, camphor tree, boxtree) and one deciduous species in Shanghai were sampled during 2005 to 2006. The results showed that there has big difference in accumulating capacity and tendency among these species.

采用特征比值法对上海环境数据进行的源分析结果显示:选定的工业区域大气PM10中PAHs污染主要来自工业排放,其次为交通和扬尘污染,总体表现为混合污染;表层土壤分析结果为煤炭燃烧和交通排放混合污染

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