中华放射医学与防护杂志
中華放射醫學與防護雜誌
중화방사의학여방호잡지
Chinese Journal of Radiological Medicine and Protection
2015年
4期
287-289,306
,共4页
武云云%马永忠%孙亚茹%崔宏星%刘建香%尚兵%苏旭
武雲雲%馬永忠%孫亞茹%崔宏星%劉建香%尚兵%囌旭
무운운%마영충%손아여%최굉성%류건향%상병%소욱
氡%地下水%水厂%室内空气
氡%地下水%水廠%室內空氣
동%지하수%수엄%실내공기
Radon%Groundwater%Water supply%Indoor air
目的 通过对水和空气中氡浓度的测量,初步调查水氡释放对水厂空气氡的影响.方法 选取某市的两座地下水处理厂,采集水厂的水源水、出厂水和末梢水.利用连续测氡仪快速水氡测量方法,测量水中氡浓度;采用固体径迹探测器,累积测量水厂不同区域空气氡浓度.结果 两座水处理厂水源水、出厂水和末梢水中氡浓度分别为:(7.59±1.36)、(3.56±0.86)和(3.68±0.81) Bq/L与(12.19±0.57)、(7.87±1.12)和(9.50±1.12) Bq/L.水源水最高,出厂水与末梢水相近.跌水曝气和开放式过滤工艺能明显降低水中氡含量.曝气室和过滤车间氡浓度分别高达4 218和1 937 Bq/m3,明显高于我国工作场所氡浓度限值1 000 Bq/m3.结论 地下水处理厂曝气车间和开放式过滤车间氡浓度受到水氡释放的影响,我国地下水处理厂氡的问题应该引起重视.
目的 通過對水和空氣中氡濃度的測量,初步調查水氡釋放對水廠空氣氡的影響.方法 選取某市的兩座地下水處理廠,採集水廠的水源水、齣廠水和末梢水.利用連續測氡儀快速水氡測量方法,測量水中氡濃度;採用固體徑跡探測器,纍積測量水廠不同區域空氣氡濃度.結果 兩座水處理廠水源水、齣廠水和末梢水中氡濃度分彆為:(7.59±1.36)、(3.56±0.86)和(3.68±0.81) Bq/L與(12.19±0.57)、(7.87±1.12)和(9.50±1.12) Bq/L.水源水最高,齣廠水與末梢水相近.跌水曝氣和開放式過濾工藝能明顯降低水中氡含量.曝氣室和過濾車間氡濃度分彆高達4 218和1 937 Bq/m3,明顯高于我國工作場所氡濃度限值1 000 Bq/m3.結論 地下水處理廠曝氣車間和開放式過濾車間氡濃度受到水氡釋放的影響,我國地下水處理廠氡的問題應該引起重視.
목적 통과대수화공기중동농도적측량,초보조사수동석방대수엄공기동적영향.방법 선취모시적량좌지하수처리엄,채집수엄적수원수、출엄수화말소수.이용련속측동의쾌속수동측량방법,측량수중동농도;채용고체경적탐측기,루적측량수엄불동구역공기동농도.결과 량좌수처리엄수원수、출엄수화말소수중동농도분별위:(7.59±1.36)、(3.56±0.86)화(3.68±0.81) Bq/L여(12.19±0.57)、(7.87±1.12)화(9.50±1.12) Bq/L.수원수최고,출엄수여말소수상근.질수폭기화개방식과려공예능명현강저수중동함량.폭기실화과려차간동농도분별고체4 218화1 937 Bq/m3,명현고우아국공작장소동농도한치1 000 Bq/m3.결론 지하수처리엄폭기차간화개방식과려차간동농도수도수동석방적영향,아국지하수처리엄동적문제응해인기중시.
Objective To explore the effect of radon released from water on the indoor radon activity concentration in groundwater supplies.Methods Two groundwater supplies in a city were chosen.Radon concentrations in three kinds of water samples were determined by using a continuous radon monitor with air-water exchanger,including source water,finished water and tap water.The solid track detector was used to analyze the indoor radon concentration in water supplies.Results The concentrations of radon in source water,finished water and tap water were (7.59 ± 1.36),(3.56 ±0.86),(3.68 ±0.81)Bq/L and (12.19 ±0.57),(7.87 ± 1.12),(9.50 t 1.12) Bq/L,respectively.The concentration of radon was the highest in source water and at less varying level in finished water and tap water.Aeration and filtration tank process significantly decreased radon activity in water.Radon concentrations in aeration and filtration rooms were 4 218 Bq/m3 and 1 937 Bq/m3,respectively,which exceeded the limit in work place (1 000 Bq/m3).Conclusions Aeration and filtration workplaces for groundwater supplies were found to contain elevated radon concentrations in air,which was released from groundwater.Radon issues in groundwater supplies in China should be paid more attention.
