My daughter came back from the dentist the other day and reported that Vancouver does not fluoridate its water system.

米国で育った, where water fluoridation is quite routine, I was surprised to learn of this fluoride policy.

I discovered that, according to Health Canada, カナダ人の半分以下 (おおよそ 45 パーセント) receive fluoridated water.

ただし Health Canada supports water fluoridation as a way to reduce tooth decay, the decision to fluoridate water is a local one in Canada.

トロント, ハミルトン, ロンドン, and Edmonton are among the cities with fluoridated water. Water is not fluoridated in Vancouver, ビクトリア, モントリオール, ケベックまたは. Calgary previously fluoridated the city water, しかし、 its city council voted in 2011 to discontinue the practice.

米国では, 以上 70 percent of Americans — or more than 204 万人 — on community water systems have fluoridated water.

The percentage is even higher in Australia, ここで、 は約 90 percent of the population receives fluoridated water.

U.K., like many European countries, has taken the opposite approach. 以下 10 percent of U.K. residents have fluoride added to their water supply.

One of the many unexpected things you learn when you move to a new country!

あなたは何について? What facts surprised you when you moved abroad? Please leave a comment and share your discoveries.

による水ガラス写真 グレッグRiegler写真 (Flickrの)