scholarly journals Effect of Municipal Solid Waste (MSW) Leachate on Groundwater Quality in Port Harcourt, Nigeria

Author(s):  
O. Olushola Eseyin ◽  
I. Charles Osu

Aims: This study was carried out to assess the effect of Municipal Solid Waste (MSW) leachate on groundwater quality in Port Harcourt, Nigeria. Cross-sectional study was conducted around two dumpsites in Port Harcourt, Nigeria on leachates and borehole water. Study Design: Cross-sectional study of selected refuse dumpsite was conducted in Port Harcourt, Nigeria to assess the effect of Municipal Solid Waste (MSW) leachate on groundwater quality in Port Harcourt, Nigeria. The physicochemical parameters such as pH, Total Dissolved Solids (TDS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Electrical Conductivity (EC), Nitrite ion, Phosphate ion, Sulphate ion, Chloride ion and heavy metals (Cd, Pb, Zn, Fe, and Cu) were determined by standard protocol of APHA (2012). The samples were analysed by three quality tools/indices such as the Water Quality Index (WQI), Contamination Factor (CF) and Contamination Degree (CD). Results and Discussion: The result shows that some parameters in the borehole water did not meet the standards of World Health Organization (WHO) and Nigerian Standards for Drinking Water Quality (NSDWQ), and most leachates and borehole water qualities near the un-engineered dumpsites are of poor quality. There was a decreasing trend in concentrations of hazardous contaminants from the leachate to nearby borehole water and eventually the distant borehole water. This shows that the leachates exert great effect on the concentrations of contaminants in the surrounding borehole waters and distant ones. Conclusion: It is concluded that there is an increase in risk to the borehole and public health that is reported near the unengineered dumpsites; which can spread to other region on bioaccumulation. The result indicated that the dumpsite leachate is producing many potent contaminants to the environment and to the people nearby.

BMJ Open ◽  
2012 ◽  
Vol 2 (5) ◽  
pp. e001338 ◽  
Author(s):  
Hala Samir Abou-ElWafa ◽  
Sohair Fouad El-Bestar ◽  
Abdel-Hady El-Gilany ◽  
Ehab El-Sayed Awad

PLoS ONE ◽  
2015 ◽  
Vol 10 (6) ◽  
pp. e0128719 ◽  
Author(s):  
Yuewei Liu ◽  
Haijiao Wang ◽  
Shaofan Weng ◽  
Wenjin Su ◽  
Xin Wang ◽  
...  

2021 ◽  
Author(s):  
Mariana Andrade ◽  
Nara Araujo ◽  
Maria Isabel Vianna ◽  
Maria Cristina Cangussu ◽  
Isaac Gomes-Filho ◽  
...  

Abstract This cross-sectional study evaluated the dental caries and its associated factors among domestic waste collectors. A total of 301 adult men who worked for a waste collection corporation were included; 171 men worked in direct contact with domestic solid waste and 130 did not. Sociodemographic data, working and medical history were assessed. The decayed, missing, and filled permanent teeth (DMFT) index was examined. Logistic regression analysis was used to identify factors associated with dental status with a significance level of 5%. The overall mean DMFT score was 8.36 ± 5.64. The mean DMFT, missing teeth (MT), and filled teeth (FT) were significantly higher in workers who did not have any direct contact with waste (p ≤ 0.04). In the logistic analysis, DMFT ≥ 8 was only associated with older age (OR = 8.41 [95% confidence interval (95%CI), 5.01–14.12], p < 0.001). Decayed teeth (DT) ≥ 2 was associated with no previous oral hygiene instruction (OR = 2.70 [1.50–4.81], p = 0.001) and no daily dental flossing (OR = 4.26 [1.92–9.43], p < 0.001). MT ≥ 9 was associated with lower education level (OR = 3.33 [1.57–7.10], p = 0.002). FT ≥ 3 had a negative association with low income (OR = 0.42 [0.25–0.70], p < 0.001) and no daily flossing (OR = 0.42 [0.23–0.76], p = 0.004). Occupational exposure to domestic solid waste was not associated with poor dental status. Instead, age, education, income level, and oral hygiene were associated with dental health status. Missing teeth constituted the major component of the DMFT index. Therefore, prevention and oral rehabilitation programs are necessary to improve dental health.


2020 ◽  
Vol 8 (1) ◽  
pp. 99-116
Author(s):  
Bahare Lorestani ◽  
Hajar Merrikhpour ◽  
Mehrdad Cheraghi ◽  
◽  
◽  
...  

2013 ◽  
Vol 76 (6) ◽  
pp. 959-966 ◽  
Author(s):  
GAYEON WON ◽  
PAMELA J. SCHLEGEL ◽  
JENNIFER M. SCHROCK ◽  
JEFFREY T. LeJEUNE

Irrigation water is considered a potential source of preharvest pathogen contamination of vegetables. Hence, several organizations have recommended microbiological standards for water used to irrigate edible plants. The purpose of this study was to determine the strength of association between microbial quality indicators (coliforms and Escherichia coli) in irrigation water and on irrigated vegetables. Data analyzed included original results from a cross-sectional study conducted in the Midwestern United States during summer 2009 and information presented in two previously published studies performed in France and Portugal to investigate microbial quality of irrigation water and watered produce. In the cross-sectional study, repetitive PCR (rep-PCR) was used to characterize genetic relatedness of E. coli isolates from water and vegetables. No significant correlations were found between fecal indicators on leafy greens (lettuce and parsley, n = 91) or fruit (tomatoes and green peppers, n = 22) and those found in irrigation water used in the cross-sectional study (P &gt; 0.40) or in the previously published data sets (data set 1: lettuce and waste irrigation water, n = 15, P &gt; 0.40; data set 2: lettuce and irrigation water, n = 32, P = 0.06). Rep-PCR banding patterns of E. coli strains were all distinguishable among the pairs of E. coli isolates recovered from produce and irrigation water on the same farm. From the available data, the concentration of indicator organisms based on a single measure of irrigation water quality was not associated with the presence of these indicators on produce. In the absence of additional information, the use of a single microbial water quality parameter as an indicator of produce safety is of limited value for predicting the safety of the produce.


2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Faith C. Diorgu ◽  
Kelechim N Diorgu

To assess the level of awareness and knowledge of HPV infection and vaccination among 648 Teens from secondary schools and colleges in four metro cities of Port Harcourt Nigeria. Materials and methods: This cross-sectional study was conducted by from 1st March to 31st August, 2018. Girls of 13–19 years, with an average of 16 years are targeted. A written questionnaire with two parts has been applied. A preliminary written questionnaire included questions of HPV infection and vaccination awareness. Results: The study participants are poorly aware about HPV infection and vaccination but are intensely willing to know about it. 98% (n-632) are not aware of HPV infection, while, 98% (n–636) is not aware of the vaccination. Conclusions: This study brings out the unawareness about HPV infection and vaccination in urban adolescent in four metro cities in Port Harcourt Nigeria. Adolescent understanding and being aware of the HPV virus is needed to have successful vaccination programs in Nigeria.


Author(s):  
Tochi I. Cookey ◽  
Iheanyi O. Okonko ◽  
Nnenna Frank-Peterside

Background: In Nigeria, hepatitis co-infection with HIV is linked with an increase in morbidity and mortality. Objective: The goal of this study was to investigate the rate of HIV/HBV coinfection among the highly HIV-infected people in Rivers State, Nigeria. Study Design:  Cross-sectional study. Place and Duration of Study: University of Port Harcourt Teaching Hospital (UPTH), in Rivers State, Nigeria, from February 2017 to September 2019. Methods: A total of 226 HIV-positive people, 105 men and 121 women, were recruited for this study. ELISA was used to screen these participants for the presence of HIV and HBsAg, and this was done following the guidelines stipulated by the manufacturer. The demographic characteristics of the participants were obtained using a questionnaire designed for the study. Results: Seven people tested positive for HIV/HBV, resulting in a 3.1 % overall prevalence. No significant association was found to exist between HIV/HBV coinfection and the characteristics of the study population. Conclusion: A low seroprevalence was observed for HIV/HBV infection, in spite of Nigeria being endemic for HBV. Despite this low rate of HIV/HBV coinfection, routine screening for HBV markers should be carried out to reduce morbidity and mortality in this group.


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