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Lead in drinking water in public housing estates 屋邨食水含鉛事件簿

(added on 2015/09/02)

©2015 SpatioEpi.com
Data source: Hong Kong Housing Authority and Information Services Department, Hong Kong
Map created by CUHK SpatioEpi Group

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In Hong Kong, there are over 200 public rental housing (PRH) estates. The map shows the distribution of these estates and the year of intake of residents, the patterns of which reflect the development history of public housing in different areas of Hong Kong.

In response to the excess lead content found in drinking water in some recently established PRH estates in early July 2015, Housing Department has been cooperating with other governmental departments to conduct testing on water samples taken from PRH estates completed in 2005 or thereafter. As of 27 August 2015, water samples collected from a total of 11 PRH estates were found to contain lead beyond World Health Organization limit, defined as 10 micrograms per litre of drinking water. As depicted in the map, most of these affected estates were located in Sham Shui Po and Kowloon East.

Data for the map were obtained from Hong Kong Housing Authority and Information Services Department, Hong Kong.

香港現時共有超過200個提供公共租住房屋的屋邨。地圖顯示這類屋邨的分佈及入伙年份,反映本港各區的公共房屋發展史。

為應對2015年7月初於新落成的公共租住屋邨食水發現含鉛一事,房屋署已聯同各相關政府部門,為2005年或之後落成的屋邨抽驗食水。截至8月27日為止,共有11個公共租住屋邨發現食水含鉛量超出世界衛生組織的標準,即每公升食水含超過十微克的鉛。依地圖所示,該十一個受影響的屋邨多位於深水埗區及東九龍。

地圖資料源自香港房屋委員會及政府新聞處。

Related Article

Health effect of lead 鉛對人體的危害

Lead is a naturally occurring heavy metal, which is usually present in tiny quantity in the environment. However, lead and its compounds could be more commonly found in industrial products, such as paints, batteries, ceramics, solder and leaded petrol. Non-occupational exposure sources to lead, usually at a very low level, include urban dust, contaminated food and water.

Large amounts of lead accumulated in the body, due to long term exposure, may result in anaemia, high blood pressure, brain and kidney damage. Infants, young children under six, pregnant women and lactating women were more susceptible to the adverse effects caused by elevated blood lead level. Health advice shall be sought if whole blood lead level exceeds 10 microgram/decilitre for adults or 5 microgram/decilitre for persons under 18, pregnant or lactating women.

鉛是一種的重金屬,天然存在於環境中的蘊藏量並不多,但鉛及其化合物卻常見於各類工業製品中,如油漆、電池、陶瓷、焊接物料及含鉛汽油。非職業接觸的途徑包括吸入受污染的塵土,進食受污染的食物及飲用受污染的食水。

若長期接觸鉛,以致鉛於身體內大量積聚,或會導致貧血、高血壓、腦部和腎部受損等健康問題。高血鉛水平對嬰孩、六歲以下的幼童、孕婦及餵哺母乳的婦女的影響尤為嚴重。若成人的全血鉛水平超過每10微克/分升,或18歲以下人士、孕婦及餵哺母乳的婦女的全血鉛水平超過5微克/分升,均應向醫護人員尋求專業意見以保障健康。


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