CAJ | 학술논문

在我国某肺癌高发区采集大气颗粒物样品,测定了其中16种多环芳烃(PAns)的浓度,并收集人群的日饮食样品,以苯并(a)芘(Bap)为代表,计算人群通过空气和饮食的Bap日暴露量.用ICP-MS测定饮食中14种微量元素的日摄入量.结果表明,该地区室内空气PAHs污染显著高于室外,且毒性强的5、6环PAHs所占比例高于对照点.高发区Bap日暴露总量均值为3.758μg/d,比对照点(0.257μg/d)高近14倍.高发区有毒重金属Cd和T1 日摄入量显著高于对照点;高发区元素Se日摄入量显著低于对照点,且该地区人群从环境中摄入Se严重不足;Fe、Cu和Zn的日饮食摄入量明显低于营养元素日摄入量推荐值(RDA).
재아국모폐암고발구채집대기과립물양품,측정료기중16충다배방경(PAns)적농도,병수집인군적일음식양품,이분병(a)비(Bap)위대표,계산인군통과공기화음식적Bap일폭로량.용ICP-MS측정음식중14충미량원소적일섭입량.결과표명,해지구실내공기PAHs오염현저고우실외,차독성강적5、6배PAHs소점비례고우대조점.고발구Bap일폭로총량균치위3.758μg/d,비대조점(0.257μg/d)고근14배.고발구유독중금속Cd화T1 일섭입량현저고우대조점;고발구원소Se일섭입량현저저우대조점,차해지구인군종배경중섭입Se엄중불족;Fe、Cu화Zn적일음식섭입량명현저우영양원소일섭입량추천치(RDA).
Air samples were collected to determine the concentrations of the 16 polycyclic aromatic hydrocarbons (PAHs) in some high lung cancer rate area of our country. Total 24 h food and drinking water of the subjects were collected. Daily total exposure to Bap of local people was analyzed through the approaches of air and food. Concentrations of 14 trace elements were determined using ICP-MS and daily total exposure of each element was calculated. The experiment results showed that the PAHs pollution was more serious in indoor air than outdoor. The percentage of five-ring and six-ring PAHs which were considered more carcinogenic in exposure area was higher than that of the background area. The average of daily total exposure amount to PAHs was 3.758μg/d for the exposure group while the control was only 0.257μg/d. Significant differences of the exposure amount of some trace elements were found between the two groups. The daily intake of cadmium and thallium of the exposure group were higher than that of the control group, while daily intake of selenium was lower in the exposure group than in the control. And intake of selenium in this area was severe deficiency. The intake of life elements such as iron, copper and zinc through food and drinking water were much lower than the recommended dietary allowance (RDA).