 鲜花( 17)  鸡蛋( 0)
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公认的硬度划分是:. Y6 b. `% m- A1 I( _7 ?3 d- ?4 X
Water containing calcium carbonate at, }9 z" e: D, A" R: k
concentrations below 60 mg/l is generally considered as soft; 60–120 mg/l,
2 `; }0 c: H1 K- F/ r/ J& ?moderately hard; 120–180 mg/l, hard; and more than 180 mg/l, very hard
0 e1 L/ q/ n( g/ _ |( L6 k T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:' V; S0 m6 v) Z, l
Montreal 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., [+ i1 r1 E6 P5 N& E z% z; P; I
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。# D# M$ J+ f$ j& Y+ ~- o$ O
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