健康青年男性精液中4种邻苯二甲酸酯类物质的分布与精子活动度的关系

目的 了解男性精液中邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丁酯(DBP)和邻苯二甲酸二(2-乙基己基)酯(DEHP)4种邻苯二甲酸酯类(phthalate esters,PAEs)的暴露情况及与精子活动度的关系.方法 选择宁夏医科大学总医院生殖科体检的健康男性为研究对象,采用高效液相色谱法测定精液中的4种邻苯二甲酸酯类水平.结果 在172件精液样品中,DEP均未检出;DMP、DBP、DEHP的检出范围分别为未检出～0.56、未检出～9.95、未检出～0.85μg/L,中位数分别为未检出、1.24 μg/L、未检出,检出率分别为46％,94％,47％.3种PAEs暴露水平与各级精子百分率之间无显著相关性(P＞0.05).结论 在男性精液中检测出DMP、DBP、DEHP 3种PAEs,精液中DMP、DBP、DEHP的分布和精子活动度无相关性.     

环境样品中邻苯二甲酸酯类物质的测定与分析

目的了解环境中邻苯二甲酸酯类(phthalates)的污染情况。方法采集上海及周边杭州湾和运河地区的水样、土样、底泥及鱼、虾、蟹等水生生物样品,采用反相高效液相色谱法测定了其中邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丁酯(DBP)和邻苯二甲酸-2-乙基己基酯(DEHP)的含量。结果phthalates在水中的含量<土壤<底泥<水生生物;不同水生物对phthalates的生物富集程度不同,泥螺和虾较易富集DEP和DBP,而鱼类和河蚌较易富集DEHP。结合国内资料,推算60 kg成年人每日摄入量为3.4 mg,低于人每日安全摄入量。结论上述地区普遍存在phthalates的污染。     

城乡儿童血清中3种邻苯二甲酸酯类化合物的浓度

目的了解10～12岁城市和农村儿童血清中邻苯二甲酸酯类化合物的含量。方法于2007年1月运用反相高效液相色谱分析法(RP-HPLC)测定36名10～12岁城市儿童和38名10～12岁农村儿童血清中3种邻苯二甲酸酯类化合物[邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丁酯(DBP)和邻苯二甲酸二异辛酯(DEHP)]含量。结果城市儿童血清中DEP、DBP、DEHP含量(中位数)分别为0.0026、0.0359、0.10625mg/L,农村儿童血清中DEP、DBP、DEHP含量(中位数)分别为0.0000、0.0406、0.05245mg/L。城市儿童血清中DEP和DEHP的含量高于农村儿童,差异有统计学意义(P<0.01)。结论该地区城市儿童血清中DEP和DEHP的含量水平高于农村儿童。     

肥胖儿童血清中三种PAEs的检测和分析

目的了解10～12岁肥胖儿童血清中3种邻苯二甲酸酯类(PAEs)——邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丁酯(DBP)和邻苯二甲酸二异辛酯(DEHP)的含量。评估三种PAEs对肥胖儿童可能产生的危害。方法运用反相高效液相色谱分析法(HPLC)测定10～12岁肥胖儿童36名和正常体重儿童36名血清中三种PAEs含量,对两人群三种PAEs测定值(mg/L)作对比分析及性别差异分析。结果肥胖儿童血清中三种PAEs的中位数(mg/L)分别为0.0032(DEP)、0.1649(DBP)和0.1680(DEHP);正常体重儿童血清中三种PAEs的中位数(mg/L)分别为0.0026(DEP)、0.0359(DBP)和0.1063(DEHP);经Wilcoxon两样本检验,Z值分别为1.1013、5.5584和3.0128,P值分别为0.2708、<0.0001和0.0026,肥胖儿童与正常体重儿童血清中DBP和DEHP的含量差异有统计学意义,而DEP含量差异无统计学意义。两组儿童的含量构成比经χ2检验,χ2值分别为18.57、34.5956和10.9193,P值分别<0.0001、<0.0001和0.0043,肥胖儿童与正常体重儿童血清中DEP、DBP和DEHP的含量构成比均有统计学意义。结论肥胖儿童DBP、DEHP的含量平均水平显著高于正常体重儿童,且肥胖儿童在含量较高水平上的人数多于正常体重儿童。     

水中邻苯二甲酸酯的固相萃取-气相色谱-质谱测定法

目的建立水中邻苯二甲酸酯的固相萃取-气相色谱-质谱测定法。方法采用固相萃取法对水样进行提取富集,以10%甲醇-甲基叔丁基醚为洗脱溶剂,采用气相色谱-质谱法选择离子模式(SIM)对水中邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丁酯(DBP)及邻苯二甲酸二(2-乙基己基)酯(DEHP)进行定量分析。结果在0.00～10.00μg/ml范围内,该方法所得的回归方程线性关系良好,相关系数均>0.998,DMP、DEP、DBP、DEHP检出限分别为2.7、2.1、1.6、2.5 ng/L.,平均回收率为78.0%～102.5%,RSD为3.3%～7.8%。结论该方法溶剂使用量少,简单、快捷、准确,适用于水中邻苯二甲酸酯类物质含量的测定。     

精液中硒含量与精子质量和精子DNA 氧化损伤的关系

目的　探讨血清和精液中硒浓度与精子质量和精子DNA氧化损伤的关系。方法　用原子吸收光谱检测血清和精液中硒浓度 ,按WHO规范方法检测精液量、精子数、每次射出精子总数、活力和活动精子百分率及精子畸形率 ,用高压液相色谱 光电检测系统和高压液相色谱 紫外线检测器同时检测人精子DNA 8 羟基脱氧核糖鸟苷 (8 OHdG)和脱氧核糖鸟苷 (dG)水平。结果　已孕组精液硒平均浓度 (0 74μmol/L)明显高于不孕组 (0 5 6 μmol/L) ,而两组间血清硒平均浓度差异无显著性。已孕组精液量、精子数和每次射出精子总数的平均值 (3 91ml、46 4× 10 9/L和 16 8 0× 10 6)明显高于不孕组 (2 79ml、36 5× 10 9/L和 10 2 0× 10 6) ,两组间精子活力、活动精子百分率和精子畸形率的平均值差异无显著性。精液硒浓度与精子数、每次射出精子总数、精子活力、活动精子百分率之间呈明显的正相关 ,而血清硒浓度与精子质量均无明显相关关系。精子DNA 8 OHdG水平与精液硒浓度呈明显负相关 ,而与血清硒浓度无明显相关关系。结论　精液硒浓度与人类精子质量和精子DNA 8 OHdG有关 ,血清硒浓度不影响精子质量和精子DNA氧化损伤程度     

餐饮环节食品包装材料中塑化剂含量及迁移研究

目的了解餐饮环节食品包装材料中20种邻苯二甲酸酯类塑化剂(PAEs)的含量以及在脂肪性食品模拟物中的迁移情况。方法采集餐饮环节样品100份,测定其中20种PAEs含量,选取其中直接接触脂肪性食品的样品(共62份),研究其在脂肪性食品模拟物(异辛烷)中的迁移量,采用气相色谱串联三重四级杆质谱(GC-MS/MS)法进行测定。结果 100份样品中10种塑化剂有检出,分别为邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丙烯酯(DAP)、苯甲酸苄酯(BBZ)、邻苯二甲酸二异丁酯(DIBP)、邻苯二甲酸二丁酯(DBP)、邻苯二甲酸丁基苄基酯(BBP)、邻苯二甲酸二戊酯(DPP)、邻苯二甲酸二己酯(DHXP)和邻苯二甲酸二(2-乙基)己酯(DEHP),检出率最高的为DBP(84.0%),其次是DIBP(76.0%);检出率最低的为DPP和BBP(1.0%)。迁移试验中,DMP、DEP、DIBP、DBP和DEHP5种塑化剂有检出,其中DEHP和DBP检出率较高,分别为100.0%和93.5%,而DMP的检出率较低,仅为8.1%。从迁移量来看,5种有检出的塑化剂的迁移量均较低。结论餐饮环节食品包装材料中普遍检出邻苯二甲酸酯类塑化剂,但浓度普遍比较低,同时,在脂肪性食品模拟物中的迁移量均未超过国家限值的要求。     

武汉市居民住宅室内空气颗粒物中邻苯二甲酸酯污染状况

目的了解武汉市居民住宅室内空气颗粒物中邻苯二甲酸酯污染水平。方法采集武汉市居民住宅室内空气颗粒物PM_(10)、PM_(2.5),采用GC/MS法分析15种邻苯二甲酸酯的物质浓度水平。结果共检测出DMP、DEP、DiBP、DBP、DEHP 5种邻苯二甲酸酯,其中DiBP、DBP和DEHP检出率为100%,DMP和DEP部分检出。结论武汉市居民住宅室内空气颗粒物中邻苯二甲酸污染广泛存在,DiBP、DBP和DEHP为主要污染物,装修材料和塑料生活用品均为重要污染源,其对健康的危害不容忽视。     

气相色谱法测定人血清中的邻苯二甲酸二丁酯和二异辛酯

[目的]了解2种最常见邻苯二甲酸酯类环境污染物邻苯二甲酸二丁酯(di-n-butyl phthalate,DBP)和邻苯二甲酸二异辛酯[di-(2-ethylhexyl) phthalate,DEHP]在人血清中的含量水平.[方法]采用有机溶剂提取,高速离心去蛋白和低温浓缩的前处理技术,用气相色谱法(GC-FID)测定,并对测定结果用SAS 8.0做统计分析.[结果]337份人血清中DBP、DEHP的检出率分别为88.4%和90.2%,含量为未检出(ND)～0.89 mg/L、ND～5.34 mg/L,且DEHP的含量高于DBP的含量(z=-248,P(0.01).[结论]测定结果提示邻苯二甲酸酯类环境污染物已进入人血清,部分人体内有一定的污染负荷,应引起重视.     

天津市郊区不同土地利用类型土壤中邻苯二甲酸酯含量的调查

目的探讨天津市表层土壤邻苯二甲酸酯(PAEs)的含量和污染特征。方法 2009年11月采集天津市5个郊区84个表层土壤样品,采用气相色谱-质谱法(GC-MS)分析邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丁酯(DBP)、邻苯二甲酸苄基丁基酯(BBP)、邻苯二甲酸二(2-乙基己基)酯(DEHP)和邻苯二甲酸二辛基酯(DOP)的含量。结果 6种PAEs在所有土壤样品中全部检出;其合计含量在50.39~1657.46μg/kg之间;DEHP含量最高,DMP和DEP相对较低;大田和撂荒地6种PAEs合计含量较高,果园较低;与美国土壤PAEs化合物控制标准相比,DMP、DEP和DBP分别超标28.57%,2.38%和33.33%。结论本次调查的天津市郊区不同土地利用类型土壤中不同程度地检出6种PAEs,且含量变异较大。     

塑料瓶装饮料中邻苯二甲酸酯的含量分析

[目的]了解塑料瓶装饮料中邻苯二甲酸酯类（phthalates）化合物的污染水平及其影响因素。[方法]随机购买市售49种不同品牌的饮料作为研究对象,采用气相色谱法检测饮料中的邻苯二甲酸酯含量。[结果]饮料中的邻苯S-甲酸二丁酯（di-butylphthalate,DBP）和邻苯二甲酸二（2-乙基己基）酯[di-（2-ethylhexyl）phthalate,DEHP]的检出率分别为98．O％和100．O％,平均含量分别为0．038mg／L和0．071mg／L,邻苯二甲酸二乙酯（di-ethyl phthalate,DEP）未检出;其中,茶饮料中DBP和DEHP的检出浓度范围分别为0—0．047mg／L和0．045—0．146mg／L;果汁饮料中DBP的最高检出浓度达0．127mg／L,DEHP的检出浓度范围为0．060～0．371mg／L;咖啡乳饮料中检出DBP和DEHP的最大值分别为0．081mg／L和0．089mg／L,最小值分别为0．032mg／L和0．033mg／L。果汁饮料和咖啡乳类饮料中DBP的含量均高于茶饮料（P=0．003和P=0．002）,果汁饮料中DEHP的含量高于茶饮料和咖啡乳类饮料（P=0．001和P=O．002）;拟合的线性回归模型结果显示,与茶饮料相比,果汁饮料和咖啡乳饮料中DBP浓度的对数值分别高出0．36个单位和0．50个单位;果汁饮料中DEHP浓度的对数值高于茶饮料0．47个单位,酸性组饮料中DEHP浓度的对数值比弱酸性组饮料高0．30个单位。[结论]塑料瓶装饮料中DBP、DEHP检出率均很高,不同种类饮料中其含量差异有统计学意义,饮料中邻苯二甲酸酯均在国家规定限值内;但在饮料种类和存储时间固定的条件下,饮料中DEHP含量水平随着pH值变小而增大。     

低出生体重儿脐血及其母血中几种环境内分泌干扰物含量水平测定

目的 研究邻苯二甲酸酯类和表面活性剂类环境内分泌干扰物(EDs)在低出生体重儿脐血及其母血中的含量水平.方法 运用反相高效液相色谱分析法测定了21份母血和30份脐血中邻苯二甲酸酯类[邻苯二甲酸-2-乙基己基酯(DEP)、邻苯二甲酸二丁酯(DBP)、邻苯二甲酸-2-乙基己酯(DEHP)及其代谢物邻苯二甲酸单乙基己酯(MEHP)]和2种表面活性剂[辛基酚(OP)和壬基酚(4-NP)]的含量水平.结果 低出生体重儿的平均体重为(2158.48±125.06)g,出生身长为(45.36±2.52)cm.母血中DEP、MEHP、DBP、DEHP、4-NP和OP的浓度分别为18.90、11.8、7.67、8.84、1.51和2.86 mg/L;检出率分别为81.0%、81.0%、71.4%、81.0%、71.4%和57.1%.脐血中,DEP、MEHP、DBP、DEHP、4-NP和OP的浓度分别为11.92、9.94、5.71、5.20、1.12和1.19 mg/L;检出率分别为86.7%、63.3%、60.0%、63.3%、56.7%和66.7%.无论是在母血还是在脐血中,邻苯二甲酸酯类的含量和检出率均高于表面活性剂.代谢物MEHP含量高于原型DEHP.脐血中游离的各EDs含量分别占母血含量的47.82%～84.05%.结论 人从胚胎时期就暴露于环境内分泌干扰物.     

Prenatal exposures to phthalates among women in New York City and Krakow, Poland

Experimental evidence has shown that certain phthalates can disrupt endocrine function and induce reproductive and developmental toxicity. However, few data are available on the extent of human exposure to phthalates during pregnancy. As part of the research being conducted by the Columbia Center for Children's Environmental Health, we have measured levels of phthalates in 48-hr personal air samples collected from parallel cohorts of pregnant women in New York, New York, (n = 30) and in Krakow, Poland (n = 30). Spot urine samples were collected during the same 48-hr period from the New York women (n = 25). The following four phthalates or their metabolites were measured in both personal air and urine: diethyl phthalate (DEP), dibutyl phthalate (DBP), diethylhexyl phthalate (DEHP), and butyl benzyl phthalate (BBzP). All were present in 100% of the air and urine samples. Ranges in personal air samples were as follows: DEP (0.26-7.12 microg/m3), DBP (0.11-14.76 microg/m3), DEHP (0.05-1.08 microg/m3), and BBzP (0.00-0.63 microg/m3). The mean personal air concentrations of DBP, di-isobutyl phthalate, and DEHP are higher in Krakow, whereas the mean personal air concentration of DEP is higher in New York. Statistically significant correlations between personal air and urinary levels were found for DEP and monoethyl phthalate (r = 0.42, p < 0.05), DBP and monobutyl phthalate (r = 0.58, p < 0.01), and BBzP and monobenzyl phthalate (r = 0.65, p < 0.01). These results demonstrate considerable phthalate exposures during pregnancy among women in these two cohorts and indicate that inhalation is an important route of exposure.     

Distribution of Phthalate Esters in Soil of E-Waste Recycling Sites from Taizhou City in China

In recent years, increasing concern has surrounded the consequences of improper electric and electronic waste (e-waste) disposal. In this paper, Phthalate esters (PAEs) including dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), Di-(2-ethylhexyl) phthalate (DEHP) and di-n-octyl phthalate (DnOP) in the e-waste soils were collected and analyzed from sites Fengjiang, Nanshan and Meishu in Taizhou city. The result showed that the total PAEs concentrations ranged from 12.566 to 46.669 mg/kg in these three sites. DEHP, DBP and DEP were the major phthalates accounting for more than 94% of total phthalates studied. Comparing to the results from other studies, the e-waste soils from Taizhou city were severely contaminated with PAEs.     

子宫肌瘤和卵巢囊肿与血清中PAEs暴露水平关系

目的 了解育龄女性血清酞酸酯类化学物(PAEs)的暴露水平, 分析PAEs与子宫肌瘤、卵巢囊肿的相关性。方法 在上海市第一妇婴保健院收集80例子宫肌瘤、67例卵巢囊肿和17例原发性不孕共164例妇科疾病患者和80例健康对照组血清, 采用气相色谱法(GC)检测其血清中PAEs的含量, 并分析其与妇科疾病的相关性。结果 244例女性中血清的邻苯二甲酸二乙酯(DEP)、邻苯二甲酸二丁酯(DBP)和邻苯二甲酸二(2-乙基-己基)酯(DEHP)检出率分别为26.2%、95.5%和92.2%, 几何均数分别为0.071、0.270 和0.193 mg/L;病例组血清中DBP水平(0.342 mg/L)明显高于对照组(0.165 mg/L), 差异有统计学意义(t=11.870, P<0.01);子宫肌瘤组血清DBP含量与年龄因素呈负相关(r=-0.267, P=0.028), 对照组血清中DBP含量与BMI值间存在正相关(r=0.270, P=0.017)。结论 子宫肌瘤和卵巢囊肿与血清PAEs水平存在一定的相关性。     

An assessment of the toxicity of phthalate esters to freshwater benthos. 1. Aqueous exposures

Tests were performed with the freshwater invertebrates Hyalella azteca, Chironomus tentans, and Lumbriculus variegatus to determine the acute toxicity of six phthalate esters, including dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), butylbenzyl phthalate (BBP), di-n-hexyl phthalate (DHP), and di-2-ethylhexyl phthalate (DEHP). It was possible to derive 10-d LC50 (lethal concentration for 50% of the population) values only for the four lower molecular weight esters (DMP, DEP, DBP, and BBP), for which toxicity increased with increasing octanol-water partition coefficient (Kow) and decreasing water solubility. The LC50 values for DMP, DEP, DBP, and BBP were 28.1, 4.21, 0.63, and 0.46 mg/L for H. azteca; 68.2, 31.0, 2.64, and > 1.76 mg/L for C. tentans; and 246, 102, 2.48, and 1.23 mg/L for L. variegatus, respectively. No significant survival reductions were observed when the three species were exposed to either DHP or DEHP at concentrations approximating their water solubilities.     

Internal exposure of the general population to DEHP and other phthalates--determination of secondary and primary phthalate monoester metabolites in urine

A number of phthalates and their metabolites are suspected of having teratogenic and endocrine disrupting effects. Especially the developmental and reproductive effects of di(2-ethylhexyl)phthalate (DEHP) are under scrutiny. In this study we determined the concentrations of the secondary, chain oxidized monoester metabolites of DEHP, mono(2-ethyl-5-hydroxyhexyl)phthalate (5OH-MEHP) and mono(2-ethyl-5-oxo-hexyl)phthalate (5oxo-MEHP) in urine samples from the general population. The utilization of the secondary metabolites minimized any risk of contamination by the ubiquitously present phthalate parent compounds. Included in the method were also the simple monoester metabolites of DEHP, dioctylphthalate (DOP), di-n-butylphthalate (DnBuP), butylbenzylphthalate (BBzP) and diethylphthalate (DEP). Automated sample preparation was performed applying a column switching liquid chromatography system enabling online extraction of the urine on a restricted access material (RAM) and separation on a reversed phase analytical column. Detection was performed by negative ESI-tandem mass spectrometry in multiple reaction monitoring mode and quantification by isotope dilution. The excretion of DEHP and the other phthalates was studied by analyzing first morning urine samples from 53 women and 32 men aged 7-64 years (median: 34.2 years) living in northern Bavaria (Germany) who were not occupationally exposed to phthalates. Phthalate metabolites, secondary and primary ones, were detected in all specimens. Concentrations were found to vary strongly from phthalate to phthalate and subject to subject with differences spanning more than three orders of magnitude. Median concentrations for excretion of DEHP metabolites were 46.8 microg/L for 5OH-MEHP (range 0.5-818 microg/L), 36.5 microg/L for 5oxo-MEHP (range 0.5-544 microg/L), and 10.3 microg/L for MEHP (range:<0.5 (limit of quantification, LOQ) to 177 microg/L). A strong correlation was found between the excretion of 5OH-MEHP and 5oxo-MEHP with a correlation coefficient of r=0.991, indicating close metabolic proximity of those two parameters but also the absence of any contaminating interference. Median concentrations for the other monoester metabolites were for mono-n-butylphthalate (MnBuP) 181 microg/L, for monobenzylphthalate (MBzP) 21.0 microg/L, for monoethylphthalate (MEP) 90.2 microg/L and for mono-n-octylphthalate (MOP)<1.0 microg/L (LOQ). These results will help to perform health risk assessments for the phthalate exposure of the general population.     

Estimated daily phthalate exposures in a population of mothers of male infants exhibiting reduced anogenital distance

Phthalate diesters have been shown to be developmental and reproductive toxicants in animal studies. A recent epidemiologic study showed certain phthalates to be significantly associated with reduced anogenital distance in human male infants, the first evidence of subtle developmental effects in human male infants exposed prenatally to phthalates. We used two previously published methods to estimate the daily phthalate exposures for the four phthalates whose urinary metabolites were statistically significantly associated with developmental effects in the 214 mother-infant pairs [di-n-butyl phthalate (DnBP) , diethyl phthalate (DEP) , butylbenzyl phthalate (BBzP) , diisobutyl phthalate (DiBP) ] and for another important phthalate [di-2-ethylhexyl phthalate (DEHP) ]. We estimated the median and 95th percentile of daily exposures to DBP to be 0.99 and 2.68 microg/kg/day, respectively ; for DEP, 6.64 and 112.3 microg/kg/day ; for BBzP, 0.50 and 2.47 microg/kg/day ; and for DEHP, 1.32 and 9.32 microg/kg/day. The U.S. Environmental Protection Agency (EPA) reference doses for these chemicals are 100 (DBP) , 800 (DEP) , 200 (BBzP) , and 20 (DEHP) microg/kg/day. The median and 95th percentile exposure estimates for the phthalates associated with reduced anogenital distance in the study population are substantially lower than current U.S. EPA reference doses for these chemicals and could be informative to any updates of the hazard assessments and risk assessments for these chemicals.     

上海市女童血清中邻苯二甲酸二丁酯和邻苯二甲酸-2-乙基己酯水平与性早熟关系研究

目的通过对上海市性早熟女童血清中邻苯二甲酸二丁酯(DBP)和邻苯二甲酸-2-乙基己酯(DEHP)水平变化研究,探讨DBP、DEHP与性早熟女童发病的关系。方法运用气相色谱法测定110例性早熟女童和100例正常儿童血清中DBP和DEHP的含量,同时运用B型超声仪测定性早熟女童与正常儿童的子宫与卵巢体积,然后做性早熟女童血清中DBP和DEHP含量水平与子宫、卵巢体积之间的相关性分析。结果27.3%和22.7%的性早熟女童血清中分别检测出DBP和DEHP,而正常儿童仅4%和3%分别检测出DBP和DEHP。从血清中DBP和DEHP的含量构成比来看,性早熟女童血清中DBP和DEHP的含量构成比均高于正常儿童;性早熟女童子宫、卵巢体积均大于正常儿童子宫、卵巢体积(P<0.05,P<0.05);性早熟女童血清中DBP与子宫呈正相关(r=0.456,P<0.05),与卵巢也呈正相关(r=0.378,P<0.01),性早熟女童血清中DEHP与子宫呈正相关(r=0.382,P<0.05,),与卵巢呈正相关(r=0.689,P<0.01)。结论性早熟女童受DBP和DEHP污染的程度均比正常儿童严重得多,而且DBP和DEHP对子宫、卵巢的体积有影响。