Environmental Water Quality Information

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River Monitoring

Percentage of the number of severely-polluted water monitoring stations in watersheds around the country

Legend: No testing data; 0 ~ 10%; 11 ~ 20%; 21 ~ 40%; 40% above

Statistics Time： Jan, 2026

The frequency of river monitoring is

once a month

Non-polluted watersheds of this month

Huang River
Sihu River
Da-an River
Dajia River
Zengwun River
Shuaimang River
Fangshan River
Fonggang River
Sihchong River
Baoli River
Gangkou River
Jhihben River
Jian River
Sanjhan River
Liwu River
Su-ao River
Dongshan River

Statistics Time : Jan, 2026

Rankings of the severely-polluted watersheds

Linbian River: 50.00%

Unit : count of stations
Non/mildly-polluted	Lightly-polluted	Moderately-polluted	Severely-polluted
0	1	0	1

Jishuei River: 14.00%

Unit : count of stations
Non/mildly-polluted	Lightly-polluted	Moderately-polluted	Severely-polluted
2	1	2	1

Jhonggang River: 14.00%

Unit : count of stations
Non/mildly-polluted	Lightly-polluted	Moderately-polluted	Severely-polluted
2	2	0	1

Statistics Time : Jan, 2026

Huang River - Water pollution information

Station :

Legend: No testing data; Non/mildly-polluted; Lightly-polluted; Moderately-polluted; Severely-polluted

Water monitoring station information

Water Classification

Category A water bodies may be used for Class 1 public water, swimming and as Category B, C, D, and E water bodies.
Category B water bodies may be used for Class 2 public water, Class 1 aquaculture water and as Category C, D, and E water bodies.
Category C water bodies may be used for Class 3 public water, Class 2 aquaculture water, Class 1 industrial water and as Category D and E water bodies.
Category D water bodies may be used for irrigation water, Class 2 industrial water, and environmental conservation.
Category E water bodies may be used for environmental conservation.

Latitude and longitude

25°10'45.152"，121°34'56.183"

Address

No. 2 Rd. Sanho Vi., Jinshan Dist., New Taipei City

Recent monitoring sample photos

Testing information

Statistics Time : 2026/01/08

RPI: Non/mildly-polluted1.50

DO(Electrode)（mg/L）: 9.8

BOD5（mg/L）: 4.5

SS（mg/L）: 1.9

NH3-N（mg/L）: 0.04

pH: 3.06

Atmospheric Temp.（℃）: 11.7

Water Temp.（℃）: 13.8

EC（μmho/cm25℃）: 606

DOS（%）: 98.2

COD（mg/L）: 10.4

Coli_G（CFU/100mL）: <10

Total Phosphate（mg/L）: 0.118

TOC（mg/L）: 2.38

NO3_N（mg/L）: 0.46

NO2_N（mg/L）: 0.001

Cd（mg/L）: <0.001

Pb（mg/L）: <0.003

Cr6+（mg/L）: <0.002

As（mg/L）: 0.0080

Hg(mg/L)（mg/L）: <0.0003

Cu（mg/L）: 0.006

Zn（mg/L）: 0.052

Mn（mg/L）: 0.073

Ag（mg/L）: <0.001

Ni（mg/L）: <0.005

Se（mg/L）: <0.001

＊ ND means the test value is smaller than the method detection limit.

More testing items

Upper Huang River Bridge Station - Historical RPI trend (2021/03~2026/01)

Drag and drop to zoom, and press Shift to pan.

Upper Huang River Bridge Station - Trend chart of RPI testing items in the last fiew years (2021/03~2026/01)