 鲜花( 17)  鸡蛋( 0)
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公认的硬度划分是:
0 o c l% t+ l; \9 bWater containing calcium carbonate at
- B+ C% f( m. ]: \7 A7 l& A: l. jconcentrations below 60 mg/l is generally considered as soft; 60–120 mg/l,
# C6 G3 E9 T) Q5 q- a8 n; y/ g! }moderately hard; 120–180 mg/l, hard; and more than 180 mg/l, very hard! I) A# t Y; `. X, ]0 z
爱城的水硬度在150-160之间,属于硬水,但不算很硬。这种硬度的水不需要在水厂进行软化处理,适当硬度的水对健康不但无害,反而有益。以下是加拿大主要城市水硬度指标:
5 X" q$ e1 V! y0 n# BMontreal 116 ppm,Calgary 165 ppm, Regina 496 ppm, Saskatoon 160-180 ppm, Winnipeg 77 ppm,Toronto 121 ppm,Vancouver < 3 ppm, Charlottetown, PEI 140–150 ppm, Waterloo Region 400 ppm, Guelph 460 ppm.5 G7 ]; c& Y+ @% S
在家里根本不需要安装什么软化水装置,而且都要把水烧开的做法也不可取,钙和镁都沉降了下来,其实这两种元素都是身体需要的,直接喝冷水最好,如果肚子能适应的话。
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