Chemical and Microbial Characteristics of Surface and Ground Water in the Areas Burying Swine Infected with African Swine Fever, An Giang Province, Vietnam

Abstract

This study assessed the surface water and groundwater quality in

swine burial pits infected with African swine fever in An Giang

province. Data of surface water quality were collected from the

Department of Natural Resources and Environment of An Giang

province with 10 monitoring positions (denoted S1 to S10) in 3 times

(March, June and September) in 2020. The groundwater quality data

was collected at 6 locations including S1, S3, S4, S6, S8 and S10.

Parameters for surface and ground water quality including chemical

oxygen demand (COD), biological oxygen demand (BOD), nitrite

(NO2

-

-N), nitrate (NO3

-

-N), orthosphosphate (PO4

3-

-P), ammonium

(NH4

+

-N), coliform and E. coli were examined. Surface water quality

was evaluated using QCVN 08-MT:2015/BTNMT while

groundwater quality was assessed using QCVN 09-

MT:2015/BTNMT. The findings showed that all of the surface water

variables exceeded the limits of QCVN 08-MT:2015/BTNMT,

column B1, except NO3

-

-N. This indicated that surface water quality

in these monitoring sites were polluted by organic matters, nutrients

and microbes. It was als found that coliform and E. coli densities in

ground water samples were very high. The findings of the present

study revealed that water quality in swine burial pits infected with

African swine fever in An Giang province was seriously polluted

especially with coliform and E. Coli which could pose adverse risk

to surrounding environments and health. Alternative method should

be used for the treatment of swine death due to African swine fever

to curb the water pollution problems.