Wednesday, March 11, 2009

Water-ponding yard or flooding basement? 花園和地庫有水淹嗎?

The raining season is ending soon! Do you have a water ponding backyard or a flooding basement? Please consider to improve drainage system in the yards, cover the sunken patio to basement (see photo). If the basement was equipped with a single-pump sump, please upgrade to a dual-pump system or even a triple-pump system to prevent flooding at power outage.

今年雨季快要過去了!您的後花園和地庫是否有水淹的問題發生呢?
請您考慮改善花園的排水系統,在地庫天井加裝上蓋(見附圖),若地庫裝有抽水泵的話,請改裝為双重或三重保障的抽水泵,以確保停電時間可以正常抽水。

Thursday, February 26, 2009

Bedbug 床蝨

Recently, severe bedbug infestations found in hotel and apartment of major cities of USA and Canada. e.g. TorontoWinnipegCalgary and Vancouver. I had never heard any outbreak in Richmond. However we have to take caution. Please call pest control specialist when you see a supected insect in your house. Here is a Bed bug Registry online.

Fact Sheets and Guide:
City of Toronto - Bed bug fact sheets

Vancouver Coastal Health - Guide to bed bug control


Related news:
2008/05/15 The Tyee - V
ancouver's Bedbug Plague
2009/03/02 World journal - 溫市臭蟲數量 五年增十倍

2010/09/12 Sing Tao - 床虱肆虐 成全國大患
2010/09/21 CBC - Bedbug summit opens in Chicago
2010/10/13 Sing Tao - 撥款2萬殺蟲 特訓犬也出動. 西大宿舍12房間驚現床虱
2011/05/12 Vancouver Sun - St. Paul's links bedbugs to superbugs
2011/05/14 World Journal - 驚 致命床蝨 藏身3溫東遊民
2011/10/20 World Journal - 卑詩房屋廳 砸75萬滅床蝨 / 本拿比圖書館 請特種犬緝蝨
2011/10/29 World Journal - 床蝨侵襲 警局淪陷
2013/02/23 World Journal - 社福住屋床蝨再現 居民無床可睡
2014/02/25 MingPao - 殺蟲劑釀5童死傷 證屬磷化鋁遇潮釋毒
2015/05/06 Men's Journal - How Not to Get Bed Bugs from Hotels
2015/05/15 Richmond Review - Richmond condo hit with bed bug infestation
2016/02/07 SF Globe - How to look for and avoid bedbugs in a hotel room

Monday, February 9, 2009

Is Radon gas in your home? 您家有氡氣嗎?

Radon is a colourless, odourless, radioactive gas that occurs naturally in the environment. It comes from the natural breakdown of uranium in soils and rocks. The Maclean's magazine reports 2,000 Canadian die from radon exposure in their home. (click on the photo)

In 2007, we had protocols done by the BC Centre for Disease Control. A BC radon map was made (see map below). In 2021 BC Radon Data Repository (BCRDR) shows the average of 54 Richmond samples have 11 Bq/m3. (see the interactive map)

Health Canada plans to spend almost $1 million testing 18,000 randomly chosen homes to make a "radon potential map". The final report was released in March 2012. 54 samples were collected from Richmond and 100% were below 200 Bq/m3.

Please don't panic, on average only 2.5% of households contain "unsafe" levels (more than 200 becquerels per cubic metre). The Richmond houses are far away from the affected BC interior area.

 No smoking! and keep good ventilation in your home.

氡氣是無色無臭的放射性氣體,由泥土及岩石中微量的鈾自然分解出來。室內的氡氣來自地基裂縫、建築用石材及食水。是主要環境致癌物質之一,也是吸菸以外引發肺癌的第二大殺手。每年有2000加人致死原因與家中含放射性元素有關。

聯邦衛生局將動用一百萬元為一萬八千家庭測試氡氣含量,並會繪畫氡氣分佈圖。2007年卑斯省已完成試驗製成分佈圖(見附圖)。從圖中所見,列治文市並不在 200 becquerels per cubic metre 高危範圍內。
2021年卑詩綜合數據庫顯示列治文收到的54個樣本,平均值只有 11 Bq/m3
2012年公佈的全國普查亦証實列治文收到的54個樣本,全部合乎低於 200 Bq/m3 的標準。

請勿吸香煙!並保持室內空氣清新即可確保健康。

Sunday, January 18, 2009

"Zonolite" vermiculite insulation contains asbestos 保温蛭石受石棉污染

 

你的閣樓若有九十年代初期被發現受到石棉污染的蛭石保温物料(間中可能存在外牆內),可以向生產商申請賠償,截止日期為2009年8月31日。詳情請到網站http://www.graceclaims.com/.

You may aware the news "Asbestos in the walls" published on the front-page of Richmond Review dated Jan 17, 2009. The loose-fill vermiculite insulation was widely used as attic insulation (rare in walls). Some old-timer houses built before 1980 still have the materials in their attic (like the granular materials in the photos).

The vermiculite is a heat-expanded mica mineral sold under brand name "Zonolite" (It may under other brand names in Canada). It were found contaminated with asbestos in the Libby mine, Montana, USA at 80's, then closed at 1990.

Asbestos is a mineral fiber. It may be found in plumbing insulation, siding and flooring of the property. The most presence of asbestos in a building is not hazardous, but damaged asbestos product may release asbestos fibers in the air and become a health hazard. It can be positively identified only with a special type of microscope. (Note: In 1876 asbestos was discovered in Thetford township, Quebec. Canada still have asbestos mining in Quebec, mainly for export. Asbestos Mining in Canada / Canada is 5th of the top 5 producers.)

In September 2008, the manufacturer W.R. Grace offered a $6.4M settlement to Canadians whose homes now sit contaminated with the Zonolite insulation. The deadline for filing a claim on that settlement (http://www.graceclaims.com/) is Aug. 31, 2009. So please check your attic isulation as soon as possible. Zonolite insulation may not be easy to recognize if it is covered with other types of more recently installed insulation material.

http://youtu.be/LQeZrnD7O9E

http://youtu.be/jifoNSXvTuQ
 http://youtu.be/PQd_UDBp8nA

Furthermore, "Karstolite" is a brand name for the asbestos fibrous minerals insulation originating from the Karst Mine near Big Sky, Montana. The type of asbestos mined at the Karst Mine is called Anthophyllite. More details click here.

Related website:
Work Safe BC - The dangers of exposure to asbestos in vermiculite attic insulation Breakdown of asbestos management program exposes workers to asbestos fibres
LawyerAndSettlements.com - WR Grace Reaches $140 Million Settlement in Zonolite Insulation Class Action
Asbestos Toxicity - 18 minutes video made by ATSDR
Asbestos can be found in this interactive diagram - HSE, UK
A short guide to managing asbestos in premises - HSE, UK
What is asbestos? - CMHC

What is asbestos? - CCSN
Health Risks of Asbestos - Health Canada
Asbestos in Your Home - EPA, USA
Asbestos Exposure and Your Health - ATSDR, USA
Asbestos Safety and Health Topics - OSHA, USA
Asbestos Identification in Buildings: How to find & identify asbestos-containing materials
Asbestos - CBC National / Vermiculite - CBC National
Vermiculite Attic Insulation

List of Asbestos Products

Mesothelioma in the Navy Jobs
2002/10/09 The Canadian Press - Asbestos mine faces bankruptcy
2007/11/07 CBC News - Quebec asbestos mining town 'severely contaminated': report
2010/01/29 MingPao - 逾百科學家聯署 函促魁省停石棉輸出
2010/11/28 The Canadian Press - Anti-asbestos delegation headed to Quebec to press Charest on mining issue
2010/11/29 MingPao - 亞洲代表團訪魁省 宣傳石棉危害健康
2011/04/05 MingPao - 四成魁省建築工地 空氣含石棉超標
2011/06/14 MingPao - 石棉不列危險品 NDP轟哈珀政府 漠視專家意見國際條約
2011/11/04 The Winsor Star - Asbestos a national shame
2012/01/10 World Journal - 毒石棉 驚現本拿比
2012/01/25 Sing Tao - 未防石棉害 僱主判監
2012/01/25 Vancouver Sun - Asbestos-removal contractor jailed 60 days for contempt
2012/02/29 Surrey Leader - Asbestos operators hit with WorkSafeBC penalties

2012/11/26 World Journal - 魁省石棉礦場 像火星
2016/12/15 CBC News - Full asbestos ban, changed codes and regulations expected by 2018
2016/12/16 SingTao - 關注公共健康 2018起禁用石棉
2017/01/07 Singtao - 聯邦2018年全面禁用石棉 百年石棉鎮轉型

Tuesday, January 13, 2009

Is living near power lines bad for your health? 在電纜附近居住 有害健康嗎?


卑斯疾病控制中心近期研究報告指出,高壓電纜發出的電磁波,証實與白血病(Leukemia)俗稱血癌有關。詳情請參閱2009/01/13世界日報中文報導:住家近高壓線 血癌風險高。為確保家人安全與健康,卑斯水電局有電磁波測量儀器供市民外借,請與水電局辦事處1-800-224-9376聯絡。

Dr Ray Copes, director of Environmental Health Services Division, BC Centre for Disease Control, has confirmed the electromagnetic fields (EMFs) produced by electrical appliances, electrical wiring, and power lines are associated with childhood leukemia. This is published on the November 2008 issue of BC Medical Journal.

Studies using magnetic field strength as an exposure measure have found that exposures greater than the range of 0.3 to 0.4 µT lead to a doubling risk of leukemia, with very little risk below this level. This exposure range is approximately equal to a distance of 60 m within a high-voltage power line of 500 kV. (Note: In 1999 BC Hydro study found no correlation between leukemia and nearness of distribution or transmission lines, nor magnetic or electric field exposure levels. )

Dr Copes concluded to eliminate the risk, one would need to achieve a separation distance of 600 m between every high voltage power line and the nearest residence. While this could be done, it would require substantial changes to existing land use patterns and would require significant resources.

For your safety concerns: BC Hydro is committed to the safe use of electricity. A "Magnetic Field Measurement Kit" is available for loan at some BC Hydro offices throughout the province. The kit includes a measurement machine, a video and several instruction booklets to assist with your readings. Call BC Hydro 1-800-BCHYDRO (1-800-224-9376) for your closest office.

More information :
Health Canada Electric and Magnetic Fields
BC Centre for Disease Control Non-Ionizing Radiation Issues
BC Hydro Electric and Magnetic Fields
USA NIEHS Electric & Magnetic Fields
WHO Electromagnetic fields

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