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Table 1

Quantification of total Escherichia coli and cefotaxime-resistant Escherichia coli in the sampling points

Sampling pointsGPS coordinatesAltitudeActivitiesMean pHMean T° (°C)Geometric mean of E. coli/100 mLGeometric mean of E. coli resistant to CTX/100 mLRatio E. coli resistant to CTX/total E. coliARI of E. coli resistant to CTX
SP1 17M 0767699
UTM 9963162 
3,616 m Natural reserve 6.9 14.1 – – 
SP2 17M 0770448
UTM 9964422 
3,102 m Animal rearing, irrigation, domestic and recreational purposes 6.5 21.2 1.14 × 104 – – 
SP3 17M 0770873
UTM 9965390 
3,029 m Domestic and industrial activities 6.6 21.7 6 × 105 – – 
SP4 17M 0770873
UTM 9965390 
3,029 m Domestic and industrial activities 6.8 21.4 9.8 × 105 2.7 × 103 1/3.63 × 102 0.48 
SP5 17M 0775475
UTM 9972248 
2,808 m Domestic and industrial activities 6.5 22 2.8 × 106 5.8 × 103 1/4.83 × 102 0.52 
SP6 17M 07754711
UTM 9972248 
2,809 m Domestic and industrial activities 6.8 20.1 1.3 × 107 3.3 × 105 1/39.3 0.56 
SP7 17M 0780894
UTM 9976817 
2,605 m Domestic and industrial activities 6.5 20.9 1.1 × 107 4.6 × 105 1/23.9 0.60 
SP8 17M 0784248
UTM 9978510 
2,393 m Domestic and industrial activities 6.6 20.8 1.4 × 106 2.7 × 104 1/51.8 0.35 
SP9 17M 0780894
UTM 9976818 
2,598 m Domestic and industrial activities 6.9 22.8 9.4 × 106 5.4 × 105 1/18.1 0.38 
Sampling pointsGPS coordinatesAltitudeActivitiesMean pHMean T° (°C)Geometric mean of E. coli/100 mLGeometric mean of E. coli resistant to CTX/100 mLRatio E. coli resistant to CTX/total E. coliARI of E. coli resistant to CTX
SP1 17M 0767699
UTM 9963162 
3,616 m Natural reserve 6.9 14.1 – – 
SP2 17M 0770448
UTM 9964422 
3,102 m Animal rearing, irrigation, domestic and recreational purposes 6.5 21.2 1.14 × 104 – – 
SP3 17M 0770873
UTM 9965390 
3,029 m Domestic and industrial activities 6.6 21.7 6 × 105 – – 
SP4 17M 0770873
UTM 9965390 
3,029 m Domestic and industrial activities 6.8 21.4 9.8 × 105 2.7 × 103 1/3.63 × 102 0.48 
SP5 17M 0775475
UTM 9972248 
2,808 m Domestic and industrial activities 6.5 22 2.8 × 106 5.8 × 103 1/4.83 × 102 0.52 
SP6 17M 07754711
UTM 9972248 
2,809 m Domestic and industrial activities 6.8 20.1 1.3 × 107 3.3 × 105 1/39.3 0.56 
SP7 17M 0780894
UTM 9976817 
2,605 m Domestic and industrial activities 6.5 20.9 1.1 × 107 4.6 × 105 1/23.9 0.60 
SP8 17M 0784248
UTM 9978510 
2,393 m Domestic and industrial activities 6.6 20.8 1.4 × 106 2.7 × 104 1/51.8 0.35 
SP9 17M 0780894
UTM 9976818 
2,598 m Domestic and industrial activities 6.9 22.8 9.4 × 106 5.4 × 105 1/18.1 0.38 
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