Bacteriological monitoring of Hong Kong marine water quality

Hodgkiss, I. J.

doi:10.1016/0160-4120(88)90410-2

Cited by 17 publications

(10 citation statements)

References 7 publications

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“…Aeromones hydrophila and Vibrio species are known to multiply in water especially if sufficient nutrients are present (Miescier, 1977;Rippey and Cabelli, 1980;Hodgkiss, 1988) as well as occur naturally in aquatic environments (Colwell, 1978;. The higher counts of these bacteria recorded in the rainy season indicated that runoffs from land increased the bacterial load of the surface water sources during this period.…”

Section: Discussionmentioning

confidence: 96%

“…A wide range of pathogenic microorganisms can be transmitted to humans via water contaminated with fecal material. These include enteropathogenic agents such as salmonellas, shigellas, enteroviruses, and multicellular para-* To whom correspondence should be addressed sites, as well as opportunistic pathogens like Pseudomonas ueruginosu, Klebsiella, Vibrio parahemolyticus, and Aeromonas hydrophila, which multiply in water if sufficient nutrients are present (Hodgkiss, 1988).…”

Section: Introductionmentioning

confidence: 99%

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Bacteriological indicators of tropical water quality

Okpokwasili

Akujobi

1996

Environ. Toxicol. Water Qual.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Bacteriological indicators of tropical water quality

Okpokwasili

Akujobi

1996

Environ. Toxicol. Water Qual.

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“…Communicable diseases such as typhoid, paratyphoid, amoebic dysentery, bacillary dysentery, cholera and infective hepatitis were noticed in this region which can be attributed to fecal contamination of potable water. A wide range of pathogenic microorganisms can be transmitted via fecal contamination that include enteropathogenic agents (salmonellas, shigellas, enteroviruses, and multicellular parasites) as well as pathogens such as Pseudomonas aeroginosa, Klebsiella, Vibrio parahaemolyticus and Aeromonashydrophila (Hodegkiss 1988). The abundance and diversity of microorganisms are useful to evaluate the suitability of water for drinking purposes (Okpokwasili and Akujobi 1996).…”

Section: Discussionmentioning

confidence: 99%

Microbial Evaluation of Groundwater and its Implications on Redox Condition of a Multi-Layer Sedimentary Aquifer System

et al. 2015

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A synoptic microbial assessment of groundwater has been carried to describe the groundwater quality and its geochemical environment in the Pondicherry region located in the southeast part of India. Spatial and vertical variability in dissolved oxygen (DO) and chemical species clearly explain that regional geological settings associated with human pressure are controlling the groundwater quality in this region. Results show that the abundance of bacteria is positively related to DO, total organic carbon (TOC) and inversely related to well depth, whereas sulphate reducing bacteria (SRB) present at some locations do not show any systematic trend with the above parameters. About half of the measured groundwater samples showed presence of E. coli. Some suboxic deep aquifers (DO≤2 mg/L) showed presence of E.coli which are not commonly observed. SRB are found mostly in deeper Tertiary and Cretaceous aquifers reflecting presence of reducing conditions. The rapid accumulation of organic matter associated with heterotrophic conditions has increased the prevalence of redox sensitive SRB in coastal zones of Pondicherry region. Reducing conditions in deeper aquifers of Cretaceous and Tertiary formations and availability of Marcasite in these formations may lead to possible arsenic contamination in groundwater. Climate change induced sea level rise and human pollution may exacerbate the nutrient and microbial pollution in this coastal region, and this warrants a detailed investigation so that proper protection strategies for sustainable management of the groundwater resources along the Indian coastal zone can be proposed.

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“…A wide range of pathogenic microorganisms can be transmitted to humans via water contaminated with faecal material. These include unicellular parasites (such as the protozoan Cryptosporidium, Microsporidium, Amoebae) and enteropathogenic agents such as salmonellas, shigellas, enteroviruses and multicellular parasites as well as opportunistic pathogens like Pseudomonas aeroginosa, Klebsiella, Vibrio parahaemolyticus and Aeromonas hydrophila (Karanis et al 2002;Hodegkiss 1988). It is not feasible to test water for all these organisms.…”

Section: Introductionmentioning

confidence: 98%

Prevalence of indicator and pathogenic bacteria in a tropical river of Western Ghats, India

Vincy

Brilliant²,

Pradeepkumar

2015

Appl Water Sci

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The Meenachil, the only river that flows through the heart of the Kottayam district of Kerala state, India was selected for the study. The present study has been carried out with an objective to systematically examine the prevalence of indicator and pathogenic microorganisms and to compare the microbiological quality of the river water during the pre-monsoon and post-monsoon seasons. Water samples from 44 different sites during pre-monsoon and post-monsoon seasons were collected for the analysis. During the pre-monsoon period, the faecal coliform count ranged from 230 to 110,000 MPN/100 ml while there was a variation from 200 to 4600 MPN/100 ml during the postmonsoon period. When the faecal streptococci count was analysed, it ranged from 140 to 110,000 MPN/100 ml during the pre-monsoon and 70 to 4600 MPN/100 ml during the post-monsoon seasons, respectively. All the samples collected were found to have total viable count (TVC) higher than those prescribed by Bureau of Indian Standards (ISI 1991). Total viable counts were found in the range of 1.1 9 102 to 32 9 102 cfu/ml in the pre-monsoon and 1.0 9 102 to 26 9 102 cfu/ml in the post-monsoon. The presence of faecal indicator bacteria, Escherichia coli and potentially pathogenic bacteria, Vibrio cholerae, Vibrio parahaemolyticus and Salmonella enterica in the Meenachil River indicates that the bacteriological quality of the Meenachil River is poor. Moreover, it sheds light to the fact that raw sewage is being dumped into the Meenachil River. Urban runoffs and effluents of rubber factories appear to be the important sources of faecal contamination in the river. From this study, we conclude that these water bodies pose significant public health hazards. Adequate sanitary infrastructure will help in preventing source water contamination. Besides this, public health education aimed at improving personal, household and community hygiene is urgent.

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Bacteriological monitoring of Hong Kong marine water quality

Cited by 17 publications

References 7 publications

Bacteriological indicators of tropical water quality

Bacteriological indicators of tropical water quality

Microbial Evaluation of Groundwater and its Implications on Redox Condition of a Multi-Layer Sedimentary Aquifer System

Prevalence of indicator and pathogenic bacteria in a tropical river of Western Ghats, India

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