机构地区:[1]重庆市疾病预防控制中心理化与卫生毒理检测所,400042 [2]重庆市疾病预防控制中心地方病所,400042
出 处:《中国地方病学杂志》2009年第5期541-544,共4页Chinese Jouranl of Endemiology
摘 要:目的了解重庆市燃煤型氟中毒病区环境氟分布特征,为制订科学防治措施提供科学依据。方法2008年,根据重庆市的历史资料,以巫山县凌云村、栗子村和彭水县太平村、大青村4个病区村和永川区的双楼村、现龙村2个非病区村为调查村。对4个病区村所有8~12岁儿童进行氟斑牙检查,对16岁以上人群进行临床氟骨症检查。6个调查村每村抽取5户居民,每户采集1份家中所用煤、拌煤土、混土煤、煤渣、土壤,每份500g;每村抽取15户居民,每户采集玉米、大米、土豆、蔬菜,粮食和蔬菜样品各1份.每份500g,干辣椒样品1份,每份100g;每户采集1份饮用水水样,每份250ml;有饮茶习惯的居民村,每村采集茶叶15户以上,每户采集50g茶叶和600ml茶水测定含氟量;每村抽取5户居民,测旺火时的室内、外空气含氟量。结果病区村儿童氟斑牙检出率为74.65%(736/986),成人氟骨症检出率为7.20%(75/1592);病区村煤、拌煤土、混土煤、煤渣、土壤含氟量分别为(310.56±209.46)、(360.51±224.96)、(293.62±65.15)、(186.59±133.66)、(497.54±294.70)mg/kg;非病区村分别为(48.68±10.62)、(275.66±62.69)、(152.20±34.43)、(209.14±188.66)、(269.98±58.21)mg/kg,病区村均显著高于非病区村(t=7.67、31.54、5.82、5.82,P均〈0.05);病区村饮用水、玉米、辣椒、大米、土豆、蔬菜含氟量分别为(0.30±0.14)、(1.83±2.67)、(23.50±91.80)、(0.77±0.25)、(0.44±0.11)、(0.48±0.18)mg/kg,非病区村分别为(0.18±0.06)、(2.21±0.46)、(2.82±2.51)、(1.31±0.21)、(0.64±0.41)、(1.10±0.77)mg/kg;饮用水、辣椒含氟量病区村显著高于非病区村(t=7.79、2.33,P均〈0.05);大米、土豆、蔬菜�Objective To find out the distribution pattern of environmental fluoride in the coal-burning endemic fluorosis areas to provide scientific evidence for establishing prevention and remedial measures in Chongqing. Methods According to historical data in Chongqing In 2008, 4 endemic villages (Lingyun and Lizi Villages of Wushan County, and Taiping and Daqing Villages of Pengshui County) and 2 non-endemic villages (ShuangLou and XianLong Villages of Yongehuan County) were investigated. Dental fluorosis of children in 8 to 12 year old and residents over 16 years of age for clinical skeletal fluorosis were examined in four endemic villages. Five households from each of 6 villages were taken, where 500 g of coal, mixed clay with coal, mixed coal of soil, coat cinder, soil were sampled; 15 people were taken in each village, each household gathering 500 g of corn,rice, potatoes, vegetables, grain and vegetable, 100 g of dried pepper and 250 ml of drinking water were sampled from 15 families of each village. Household drinking water samples were collected 1, each 250 ml. For those having tea-drinking habit, each household was collected 50 g of tea and 600 ml of drinking tea, the amount of fluoride were determined. Indoor and outdoor air was collected and measured in 5 households in each village. Results The detected rate of dental fluorosis of children in endemic areas was 74.65% (736/986). The detected rate of skeletal fluorosis of adult was 7.20%(736/986). The average fluoride content of coal, mixed clay with coal, mixed coal of soil, cinder coal, soil in the endemic villages was (310.56 ± 209.46) , (360.51 ±224.96), (293.62 ± 65.15), (186.59 ± 133.66), (497.54 ± 294.70)mg/kg. The average fluoride content in non-endemic villages was (48.68 ±10.62), (275.66 ± 62.69), (152.20 ± 34.43), (209.14 ± 188.66),269.98 ±58.21)mg/kg. The fluoride content level of endemic villages was significantly higher than that of non-endemic villages (t = 7.67,31.54,5.82, 5.82, al
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