WSD Annual Report 2022/23

乙、感官準則 Part B. Aesthetic Guidelines 監測結果(註釋1) Monitoring Data(Note 1) (04/2022 - 03/2023) 準則值 Guideline Value 達標(註釋 2) Compliance(Note 2) 參數 Parameter 單位 Unit 最低值 Minimum 最高值 Maximum 平均值 Average 鋁 Aluminium 毫克/公升 mg/L 0.02 0.16 0.02 ≤ 0.2 ✓ 色度 Colour Hazen < 5 < 5 < 5 ≤ 15 ✓ 鐵 Iron 毫克/公升 mg/L 0.02 0.26 0.02 ≤ 0.3 ✓ 錳 Manganese 毫克/公升 mg/L < 0.01 0.02 < 0.01 ≤ 0.08 註釋3 Note 3 ✓ 2-甲基異茨醇 2-Methyl-isoborneol (MIB) 納克/公升 ng/L < 5 40 10 ≤ 50 ✓ 氣味 Odour -- 無異味 Unobjectionable 無異味 Unobjectionable ✓ 酸鹼值 (水溫25℃時) pH at 25 ℃ -- 7.0 9.2 8.3 6.5 - 9.5 ✓ 味道 Taste -- 無異味 Unobjectionable 無異味 Unobjectionable ✓ 混濁度 Turbidity NTU < 0.1 2.9 0.2 ≤ 3 ✓ 鋅 Zinc 毫克/公升 mg/L < 0.01 0.11 < 0.01 ≤ 1.5 ✓ 註釋 1. 以上參數是有關香港食水的感官質量。水質超過感官準則值一般不會導致健康問 題,但可能會導致較差的感官質量。 2. " ✓" 表示這時段內抽取的食水樣本的食水水質均完全符合感官準則。 Notes 1. The above parameters relate to the aesthetic quality of drinking water in Hong Kong. The exceedance of which could cause objectionable aesthetic effects but will not cause health concerns in general. 2. " ✓" indicates full compliance of drinking water quality with the AG in all water samples taken during this period. Data Summary 數 據 一 覽 水務署 二零二二至二三年年報 WSD Annual Report 2022/23 133

RkJQdWJsaXNoZXIy MTQyNzE=