暴露

Therefore, a experimentent with three exposure types (early cleavage exposure, 0hpf; gastrula exposure, 8hpf and 0hpf exposure but stop after 8 hours, 8h stop) were designed to investigate the toxicity and bioaccumulation of bisphenol A in zebrafish embryo in different stages.

为研究胚胎在不同发育阶段对外源化合物的毒性敏感差异，以0hpf、8hpf和8h终止3种暴露方式进行染毒，探讨斑马鱼胚胎在不同暴露时段对双酚A。

Results Inbreathe and dermal exposure to THMs in reclaimed water were the main ways of exposure for occupational worker and general populations in road clearing and public garden virescence in Beijing.

结果 再生水中氯仿、一溴二氯甲烷、二溴一氯甲烷、三溴甲烷的浓度分别为0.875~108、0.06~11.0、未检出～5.82、未检出～3.04μg/L。再生水回用于道路压尘、公园绿化，人群通过吸人和皮肤两种途径暴露于再生水，吸人暴露为主要途径，其消毒副产物THMS中。

Consequently, studying the effect of aluminium on Long-TermPotentiation and approaching its possible mechanisms can elucidate the mechanisms ofaluminium on study and memory. The research indicated that the pregnant and lactational stage is the importantstage for the filial brain growth and development.

因此本次实验采用整体动物实验的方法，通过对大鼠孕哺期慢性铝暴露，以子代大鼠海马为研究对象，探讨大鼠孕哺期铝暴露后对其子代大鼠海马LTP形成、维持的影响，并从蛋白激酶C表达的途径为阐明铝影响LTP的机制提供思路。

Chronic aluminum exposure during pregnant and lactational stage can degradethe expresion of PKCγlevel and mRNA of pups. provid the theory for frommolecular level elucidate Chronic aluminum exposure can damage the function oflearning and memory

大鼠孕哺期不同剂量慢性铝暴露降低子代鼠海马PKC蛋白表达和mRNA表达水平，从分子水平阐明慢性铝暴露损害学习记忆功能的作用机制提供出理论依据。

Following items were determined correctly:plasma and urine aluminum concentration, plasma and urine fluoride concentration, plasma Glutathione peroxidase activity, plasma Malonyl dialdehyde content, whole blood Superoxide dismutase activity, plasma cuprum and zincum concentration.

结果 与对照组比较，暴露组血浆铝和尿铝浓度、血浆氟和尿氟浓度均显著增高；血浆GSH-Px活性降低，血浆MDA含量增高，全血SOD活性增高；血浆铜浓度升高，血浆锌浓度降低；电解铝工人全血AchE活性降低（P值均小于0.001）；除视觉保留外，暴露组NCTB的各项测试得分均显著低于对照组，提示其在情感状态、注意力、听记忆、运动敏捷度与准确性方面有显著改变。

Results: A total of 37 cases of occupational exposure, by job category, the top three, respectively, are nurses, medical waste treatment, physicians, according to the risk factors of points, the top three, respectively, are a sharp weapon injury, mucocutaneous exposure, hand contamination.

结果：共发生37例职业暴露，按工作类别分，前3位分别是护士、医疗废物处理人员、医生；按危险因素分，前3位分别是利器损伤、皮肤黏膜暴露、手污染。

The effects on hepatic EROD(7-ethoxyresorufin O-deethylase)in Mugil so-iuy exposed to benzo pyrene,pyrene and their mixtures of equal concentration were investigated,at concentrations of 0.1,1.0,5.0,10.0,50.0μg/dm^3m,in experimental condition.

为测定真鲷胚胎CYP1A活性（ethoxyresorufin-o-deethylase，EROD）对于BaP暴露的响应，将受精两天后的真鲷胚胎暴露于不同浓度的BaP（0.5，0.8，1.2，1.8μg/L），采用一种对胚胎个体无损伤的方法测定胚胎EROD活性。

Moreover, in comparison of birth lengths in eight subgroups defin ed by organic solvent status (nonexposure/exposure) and maternal genotype for MS P1 and GSTM1, in the presence of organic solvents ' exposure , the birt h length was a clear gradient of adverse effects .

3我们将芳香烃溶剂，母亲基因MSP1（野生型、杂合子/突变型）与基因GSTM1分为8组，在芳香烃溶剂暴露组，可见母亲基因型致出生身长呈斜线降低，然而在芳香烃溶剂非暴露组，其母亲基因型对出生身长的影响无明显改变。

Moreover, patient histories may identify common patterns of illness among individuals with a common lifestyle or exposure element, such as reproductive problems in individuals occupationally exposed to lead.

甚至，通过病史询问可以从个体共同的生活方式或暴露元素中确定共同的疾病表现模式，如生殖问题通常是因职业暴露于铅元素中所致。

Our study showed that the exposure to PCBs/PCDFs in utero by the female Yucheng adolescents did not have remarkable effects on their pubescent and postpubescent development of reproductive and endocrine functions.

我们的研究显示油症少女虽在胚胎期暴露到多氯联苯/多氯夫喃，但此暴露对她们在青春、后青春期的性徵发育及内分泌功能的影响并不显著。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。