Table 1 - Sampling site and biological characteristics of samples from assessed stations
Sampling stations / Number of sample/s / Coordinate(Latitude, Longitude) / Cryptosporidium spp. (oocysts/L) / Giardia spp.
(cysts/L) / PCR results for Acanthamoeba spp. / PCR results for Naegleria spp.
Recreational water
River 1 / 3 / 15°01’35.47’’N, 120°39’44.62’’E / 0.2 / 0.1 / + / -
15°01’34.03’’N, 120°39’53.94’’E / 0.2 / ND / - / -
15°01’32.44’’N, 120°40’01.62’’E / ND / 0.7 / - / -
River 2 / 3 / 14°36’02.77’’N,120°59’31.28’’E / 0.6 / 58.7 / - / -
14°36’00.40’’N,120°59’28.97’’E / ND / 10.7 / + / -
14°36’50.63’’N,120°59’26.01’’E / ND / 3.5 / + / -
River 3 / 3 / 14°19’15.18’’N,120°57’32.34’’E / ND / 28.6 / - / -
14°19’25.23’’N, 120°57’27.89’’E / ND / 18.5 / - / -
14°19’36.82’’N, 120°57’22.06’’E / 0.3 / 74.4 / - / -
River 4 / 1 / 14°24’16.40’’N, 120°59’50.02’’E / 0.5 / 6.4 / - / +
S.pool 1 / 1 / 14°35’51.93’’N, 120°59’33.92’’E / ND / ND / + / -
S.pool 2 / 1 / 14°35’55.47’’N, 120°59’30.72’’E / ND / ND / - / -
S.pool 3 / 1 / 14°19’35.40’’N, 120°57’25.04’’E / 0.6 / 0.2 / + / -
Pond 1 / 1 / 15°01’38.95’’N, 120°39’31.68’’E / ND / ND / + / -
Pond 2 / 3 / 14°19’15.82’’N, 120°57’41.31’’E / 0.1 / 0.1 / + / -
14°19’15.84’’N, 120°57’41.27’’E / 0.2 / ND / - / -
14°19’15.67’’N, 120°57’41.41’’E / 0.3 / 0.2 / - / -
Natural lake / 6 / 14°03’51.27’’N, 120°58’37.81’’E / ND / ND / - / -
14°03’44.13’’N, 120°56’31.60’’E / 0.4 / 0.1 / - / -
14°02’23.87’’N, 120°57’10.12’’E / ND / ND / - / -
14°02’07.23’’N, 120°00’03.91’’E / 0.1 / 0.7 / + / -
14°02’12.60’’N, 120°58’34.68’’E / ND / 0.8 / + / +
14°03’55.36’’N, 120°56’11.89’’E / ND / 0.2 / - / +
Rain tank / 1 / 14°19’15.71’’N, 120°57’39.75’’E / 0.1 / 0.9 / - / -
Drinking water
Tap 1 / 1 / 15°01’37.98’’N, 120°39’34.09’’E / ND / ND / + / +
Tap 2 / 1 / 14°35’55.03’’N, 120°59’31.28’’E / ND / ND / + / -
Tap 3 / 1 / 14°19’13.46’’N, 120°57’43.90’’E / ND / ND / - / -
Dispenser 1 / 1 / 14°35’54.97’’N, 120°59’30.16’’E / ND / ND / - / -
Dispenser 2 / 1 / 14°19’13.37’’N, 120°58’19.45’’E / ND / ND / - / +
Well / 1 / 14°02’15.53’’N, 120°58’34.68’’E / ND / ND / + / -
Spring / 1 / 14°10’19.70”N, 120°52’09.10”E / ND / ND / - / -
Tap tank / 1 / 14°35’54.54’’N, 120°59’30.70’’E / ND / ND / - / -
Mineral / 1 / NA / ND / ND / - / +
Table 2 - Average physico-chemical characteristics of samples from assessed stations.
NA = Not Applicable *= against the DENRregulation
Samples / Temperature (°C) / pH / Conductivity (μS/cm) / Dissolved oxygen (mg/L) / Salinity (ppt) / Total dissolved solid (mg/L) / Turbidity (NTU) / Rainfall volume (mm/month) / Nitrate (mg/L) / Nitrite (mg/L) / Ammonia (mg/L) / Chlorine (mg/L) / Fluoride (mg/L)Recreational water
River 1 / 28.8 / 6.67 / 0.372 / 0.46* / 0.17 / 0.242 / 10.1 / 292 / 0.05 / 0.057 / 0.56* / 0.24 / 0
River 2 / 28.8 / 6.88 / 0.237 / 0.20* / 0.11 / 0.154 / 13.6 / 227 / 0.97 / 0.197 / 0.73* / 0.18 / 0.05
River 3 / 26.3 / 7.13 / 0.378 / 1.63* / 0.18 / 0.245 / 6.9 / 249 / 0.49 / 0.937 / 0.73* / 0.08 / 0.20
River 4 / 28.3 / 7.11 / 0.896 / 0.58* / 0.44 / 0.582 / 10.0 / 239 / 0.06 / 0.086 / 0.73* / 0.21 / 0.33
S.pool 1 / 28.8 / 6.98 / 0.622 / 0.78* / 0.30 / 0.404 / 0.9 / 227 / 0.07 / 0 / 0.09* / 2.20 / 0
S.pool 2 / 26.1 / 6.88 / 1.148 / 0.24* / 0.57 / 0.746 / 0.5 / 227 / 0.08 / 0.018 / 0.10* / 1.14 / 1.88*
S.pool 3 / 29.0 / 6.82 / 0.913 / 0.22* / 0.45 / 0.594 / 0.5 / 249 / 0.55 / 0.012 / 0.08* / 0.02 / 0.49
Pond 1 / 31.1* / 6.89 / 0.139 / 0.45* / 0.06 / 0.091 / 16.2 / 292 / 0.05 / 0.08 / 0.15* / 0.77 / 0
Pond 2 / 29.0 / 6.86 / 0.334 / 0.12* / 0.45 / 0.214 / 19.1 / 249 / 0.19 / 0.275 / 0.73* / 1.25 / 0.64
Natural lake / 28.9 / 7.33 / 1.380 / 2.19* / 0.69 / 0.898 / 4.8 / 252 / 0.001 / 0.0052 / 0.078* / 0.008 / 0.098
Rain tank / 24.4 / 6.79 / 0.062 / 0.11* / 1.40 / 0.040 / 3.1 / 249 / 0.07 / 0.01 / 0.10* / 0.06 / 0.68
Drinking water
Tap 1 / 27.70 / 6.98 / 0.384 / 0.55* / 0.18 / 0.249 / 0.51 / NA / 0.01 / 0.001 / 0.52* / 0.04 / 0
Tap 2 / 28.73 / 6.99 / 0.123 / 0.60* / 0.06 / 0.080 / 1.80 / NA / 0.03 / 0 / 0.09* / 0.31 / 0.14
Tap 3 / 27.80 / 7.15 / 0.345 / 0.57* / 0.18 / 0.223 / 0.19 / NA / 0.02 / 0.011 / 0 / 0.27 / 0
Dispenser 1 / 22.91* / 6.84 / 0.121 / 0.28* / 0.08 / 0.076 / 2.80 / NA / 0.02 / 0.011 / 0.09* / 0.46 / 0
Dispenser 2 / 26.50 / 7.28 / 0.341 / 3.04* / 0.16 / 0.221 / 0.25 / NA / 0.01 / 0 / 0 / 0.23 / 0
Spring / 26.10 / 7.11 / 0.216 / 0.58* / 0.44 / 0.582 / 9.99 / 240 / 0.10 / 0 / 0.10* / 0 / 0.26
Tap tank / 26.60 / 7.14 / 0.122 / 1.03* / 0.06 / 0.079 / 2.66 / NA / 0.10 / 0.011 / 0.10* / 0.22 / 0.07
Well / 29.70 / 7.30 / 0.635 / 3.18* / 0.31 / 0.413 / 0.72 / 252 / 0.09 / 0.05 / 0.09* / 0 / 0.05
Mineral / 26.70 / 7.11 / 0.504 / 0.45* / 0.24 / 0.328 / 0.08 / NA / 0.08 / 0 / 0.08* / 0 / 0