Shalat S L, Solo-Gabriele H M, Fleming L E, Buckley B T, Black K, Jimenez M, Shibata T, Durbin M, Graygo J, Stephan W, Van De Bogart G
Environmental and Occupational Health Sciences Institute (EOHSI), University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, and Rutgers, the State University of New Jersey, Piscataway, New Jersey, USA.
Sci Total Environ. 2006 Aug 15;367(1):80-8. doi: 10.1016/j.scitotenv.2006.01.002. Epub 2006 Feb 17.
Arsenic from chromated copper arsenate (CCA)-treated wood, widely used in playgrounds and other outdoor equipment, can persist as surface residues on wood. This raises concerns about possible health risks associated with children playing on CCA-treated playgrounds. In a Pilot Study, 11 children (13-71 months) in homes with and without CCA-treated playgrounds were evaluated with post-exposure hand rinses and urine for total arsenic. Samples of wood, soil, and mulch, as well as synthetic wipes, were sampled for total arsenic. In non-CCA-treated playgrounds vs. CCA-treated playgrounds, respectively, wood arsenic was <2.0 mg/kg vs. mean arsenic 2370 mg/kg (range 1440-3270 mg/kg); soil arsenic was <3.0 mg/kg vs. mean arsenic of 19 mg/kg (range 4.0-42 mg/kg); mulch arsenic at one non-CCA-treated playground was 0.4 mg/kg vs. two CCA-treated playgrounds of 0.6 and 69 mg/kg. The arsenic removed using a synthetic wipe at non-CCA-treated playgrounds was <0.5 microg, while mean arsenic from CCA-treated wood was 117 microg (range 1.0-313). The arsenic mass from hand rinses for children who played at non-CCA-treated playgrounds was <0.2 microg, while mean arsenic mass was 0.6 microg (range <0.2-1.9) at CCA-treated playgrounds. Mean urinary total arsenic levels were 13.6 pg/ml (range 7.2-23.1 pg/ml) for all children evaluated, but there was no association between access to CCA-playgrounds and urinary arsenic levels. Arsenic speciation was not performed. This preliminary Pilot Study of CCA-treated wood playgrounds observed dislodgeable arsenic on 11 children's hands after brief periods of play exposure. Future efforts should increase the number of children and the play exposure periods, and incorporate speciation in order to discriminate between various sources of arsenic.
用于操场及其他户外设施的铬化砷酸铜（CCA）处理过的木材中所含的砷，会作为表面残留物持续存在于木材上。这引发了人们对于儿童在使用CCA处理过的操场玩耍可能带来的健康风险的担忧。在一项初步研究中，对家中有和没有使用CCA处理过的操场的11名儿童（13至71个月）进行了研究，通过接触后洗手和尿液检测总砷含量。同时采集了木材、土壤、覆盖物样本以及合成擦拭布样本检测总砷含量。在未使用CCA处理的操场与使用CCA处理的操场中，木材中的砷含量分别为<2.0毫克/千克与平均砷含量2370毫克/千克（范围为1440 - 3270毫克/千克）；土壤中的砷含量分别为<3.0毫克/千克与平均砷含量19毫克/千克（范围为4.0 - 42毫克/千克）；一个未使用CCA处理的操场的覆盖物中砷含量为0.4毫克/千克，而两个使用CCA处理的操场的覆盖物中砷含量分别为0.6毫克/千克和69毫克/千克。在未使用CCA处理的操场，用合成擦拭布去除的砷含量<0.5微克，而使用CCA处理的木材中平均砷含量为117微克（范围为1.0 - 313微克）。在未使用CCA处理的操场玩耍的儿童洗手后的砷含量<0.2微克，而在使用CCA处理的操场玩耍的儿童洗手后的平均砷含量为0.6微克（范围为<0.2 - 1.9微克）。所有接受评估的儿童尿液中总砷平均水平为13.6皮克/毫升（范围为7.2 - 23.1皮克/毫升），但接触CCA操场与尿液砷含量之间没有关联。未进行砷形态分析。这项关于使用CCA处理的木材操场的初步研究发现，儿童在短暂玩耍接触后，手上有可去除的砷。未来的研究应增加儿童数量和玩耍接触时间，并进行形态分析，以便区分砷的各种来源。
