A Review on Antibiotic Resistance Gene (ARG) Occurrence and Detection in WWTP in Ishikawa, Japan and Colombo, Sri Lanka

Sulfikar,; Sorn, Sovannlaksmy; Honda, Ryo; Chaminda, Tushara; Kumar, Manish

doi:10.1007/978-981-32-9771-5_1

Cited by 2 publications

(2 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Municipal wastewater is a major source of ARB in urban water environment in both developed and developing countries [3][4][5][6][7][8] . ARB in wastewater still remains at high abundance in secondary treatment effluents of WWTPs, and becomes the major source in water environment and drinking water resources [4][5][6][9][10][11][12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Estimated discharge of antibiotic-resistant bacteria from combined sewer overflows of urban sewage system

et al. 2020

Self Cite

View full text Add to dashboard Cite

Yearly discharge of antibiotic-resistant bacteria (ARB) from combined sewer overflow (CSO) was estimated. The volume of CSO was estimated from operating data of the pumping station. In the target sewer catchment, 23% of the total of the volume of combined sewage was discharged untreated as CSO. Combined sewage contained 3-log larger E. coli than secondary treatment effluent although the abundance of antibiotic-resistant E. coli was not significantly different. In the target-combined sewer catchment, a yearly total of 4.8 × 10 16 CFU of E. coli was discharged from 6.1 × 10 6 m 3 of CSO, while 1.3 × 10 12 CFU of E. coli from 2.1 × 10 7 m 3 of effluent from the wastewater treatment plant (WWTP). This E. coli discharge was equivalent to 7.9 × 10 9 CFU/m 3 from CSO, and 6.2 × 10 4 CFU/m 3 from WWTP effluent. Consequently, a yearly total discharge of antibiotic-resistant E. coli from CSO was 3.7-log larger than the WWTP effluent. The small-flow CSO events, which had hourly flow rate smaller than five times of the average dryweather flow, accounted for 43% of the total CSO volume, but 79% of the total discharge of antibiotic-resistant E. coli due to a small dilution factor with stormwater and frequent discharge. Reduction of small-flow CSO events would be important for effective reduction of ARB discharge from CSO.

show abstract

Section: Introductionmentioning

confidence: 99%

Estimated discharge of antibiotic-resistant bacteria from combined sewer overflows of urban sewage system

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…A relation between all the pollutants, that is, metals, viruses, PPCPs, and microplastic has already been studied for the tropical river, lakes, and sewage treatment plants in India 29,30 , and thus there is a lot more to look up now towards the seasonal variability of these micro-pollutants. The presence of these emerging contaminants has become a serious threat for the urban residential colonies as they are more vulnerable to it 31,32 . Overall, the seasonality influence on ARB and ARG has yet not been dealt with in detail, which is highly required for a better understanding of its transport, concentration, and transmission in the river systems.…”

mentioning

confidence: 99%

Seasonality impels the antibiotic resistance in Kelani River of the emerging economy of Sri Lanka

2020

Self Cite

View full text Add to dashboard Cite

We evaluated the occurrence of antibiotic-resistant bacteria, antibiotic-resistant gene, and metal concentration in a tropical river of Sri Lanka as a pre-emptive effort to understand the seasonal impact on their prevalence. Resistance for norfloxacin, ciprofloxacin, levofloxacin, kanamycin monosulfate (KM), tetracycline (TC), and sulfamethoxazole (ST) was measured with Kirby-Bauer disc diffusion method. The prevalence of Escherichia coli ranged from 10 to 27 CFU (colony-forming unit) ml −1 in Kelani River in Sri Lanka, and most of the E. coli isolates were resistant to more than one antibiotic. However, the resistance for TC and ST was much higher than other antibiotics. We found that the resistance percentage for older antibiotics like TC and ST was higher than the newer antibiotics. We detected genes that confer resistance to TCs, sulfonamides, β-lactams, and fluoroquinolones. Seasonal variation in the resistance of fluoroquinolones was much higher than the non-fluoroquinolones, but the effect was antagonistic. Overall, the significant seasonal variations imply the importance of mixed source and environmental conditions for development and transmission of antibiotic resistance.

show abstract

A Review on Antibiotic Resistance Gene (ARG) Occurrence and Detection in WWTP in Ishikawa, Japan and Colombo, Sri Lanka

Cited by 2 publications

References 51 publications

Estimated discharge of antibiotic-resistant bacteria from combined sewer overflows of urban sewage system

Estimated discharge of antibiotic-resistant bacteria from combined sewer overflows of urban sewage system

Seasonality impels the antibiotic resistance in Kelani River of the emerging economy of Sri Lanka

Contact Info

Product

Resources

About