42 research outputs found
A retrospective review of PID amongst women seen in GOPC and their immediate outcomes at a health facility in Nigeria between 2007-2017
Background: Women suffering from Pelvic Inflammatory Disease (PID) are at higher risk of infertility, regular/prolonged hospitalization making this disease a clinical and public health issue. This study aimed to investigate the reported cases of PID, associated factors and drug management of this condition by clinicians.Design: Patients records within the study period were obtained from the medical records unit of the central secondary health to extract relevant information of all the patients diagnosed with PID.Results: Results showed that 57 (41.6%) women were within the age range of 26 and 35 years. Also, 69 (50.4%) women were diagnosed with PID for the second time. The results showed that Chlamydia trachomatis was the most isolated organism while vaginal candidiasis (13.1%) was the most frequent co-infection. Metronidazole (68%), doxycycline (67%) and ciprofloxacin (54%) were the foremost prescribed.Conclusions: High recurrent cases of PID observed in this study calls for investigation into probable drug resistance development and patients’ education. Finally, the observed high prevalence of PID the adolescent age group necessitates public health education in the inherent dangers of early sexual activities
Assessment Of Polycyclic Aromatic Hydrocarbons In Locally Smoked Fish Sold In Lagos Markets
Polycyclic aromatic hydrocarbons (PAHs) are known widespread contaminants which represent an important group of carcinogens. This study reports the concentrations of PAHs in smoked fishes locally sold in two markets in Lagos state, Nigeria. The amounts of PAHs present in the samples were quantified using gas chromatography coupled with flame ionization detector (GC-FID). The total concentration of PAHs detected in each sample are 127.5, 86.06, 58.39 and 101.58 μg/kg dry weight for the following fish species respectively; Scomberomorus tritor, Tilapia guinensis, Ilisha africana and Clarias gariepinnus. Benzo[a]pyrene was present in all the samples and the concentration exceeds the permissible limit of 5.0 μg/kg except in one of the fish species. The abundance of high molecular weight PAHs in three of the fish species suggests that pyrolysis was the method used in the smoking process. From the maximum limit set by the European Commission for the sum of PAH, only S. tritor exceeded the 30 μg/kg limit with 54.68 μg/kg present
Trace and major elements distribution in coastal sediment cores from Lagos Lagoon,Nigeria
Heavymetalscontaminationinaquaticecosystemshasbeena
majorconcern,however,noinformationisavailableaboutthe
concentrations, depthdistributionsandecologicalrisksofheavy
metals insedimentscoresfrommicrotidallagoonalecosystemin
Lagos, Nigeria.Foursedimentcoreswerecollectedusinga
50 cm × 3.5 cmWildco®handcorer.Elementaldeterminations
werecarriedoutusingtheMicrowavePlasmaAtomicEmission
Spectrometry (4200MP-AES)afterextraction.Theconcentrations
of heavymetalsinthesedimentcoresindicatedenhanceddegree
of contaminationinfluenced byanthropogenicdischargesespe-
cially industrialeffluents. Verticaldepthdistributionsindicated
varieddepositionalperiodslargelycontrolledbyincreasing
anthropogenicland-basedactivities.Theremarkablemetalpollu-
tion ofcoresedimentsraisestheconcernpotentialsourcesof
metals tothelagoonalecosystemandecologicalriskstothebiota,
humans, andtheenvironment.Theresultsofelementalcon-
centrations shouldbeconsideredasbaselinedataforheavymetals
in sedimentsintheregion
Discharge of Cr, Mn,Ni, Cu and Zn from E-waste Components into Dumpsites Soil at Westminster Market, Lagos Nigeria
Polycyclic aromatic hydrocarbons in imported Sardinops sagax: Levels and health risk assessments through dietary exposure in Nigeria
Polycyclic aromatic hydrocarbons (PAHs) occurrence and assessment of dietary exposure from imported
canned sardines (Sardinops sagax) commercially marketed in local stores and supermarkets in Nigeria
were evaluated for the
first time. PAHs determinations were performed using high performance liquid
chromatography (HPLC) (Agilent 1290 model) equipped with UV-VIS diodes array detector (DAD) at
l = 210 nm and 214 nm. The percentage recoveries were higher than 96%. The degree of contamination
expressed as total concentration of PAH congeners ranged between 2.53 and 35.55 mg kg�1 dry weight (d.
w.) at l = 210 nm, and 1.30 and 27.93 mg kg�1 (d.w.) at l = 214 nm. The carcinogenic (TEQBaP) and
mutagenic toxicities (MEQBaP) of eight priority PAHs were evaluated. Benzo[a]pyrene, benzo[b]
fluoranthene, benzo[k]fluoranthene and indeno[1,2,3-c,d] pyrene contributed significantly to the total
carcinogenic equivalents of PAHs. The mutagenic equivalents were largely dominated by chrysene, benzo
[b]fluoranthene, benzo[k]fluoranthene and benzo[a]pyrene and indeno[1,2,3-c,d]pyrene equivalence
factors. The estimated lifetime average daily dose (LADD), average annual excess risk (AR), excess cancer
rate (ECR), and hazard quotient risk (HQ) were evaluated for adults, children and preteens exposure
related risks. The LADD, ECR, AR and HQ of PAHs for carcinogenic and non-carcinogenic risks are relatively
higher in preteens than children and adults
Adsorption properties of Azadirachta indica extract on corrosion of Aluminium in 1.85 M Hydrochloric acid
The crude extract of Azadirachta indica was used in the corrosion inhibition study of aluminium metal
coupons in 1.85 M hydrochloric acid environment by gasometric technique. The coupons were immersed in
test solutions of uninhibited 1.85 M HCl and those containing extract concentrations of 10%, 20%, 30%, 40%
and 50% (v/v) at room temperature. The rate of the reaction was captured by monitoring the volume of
hydrogen gas evolved as a result of the interaction. The inhibition efficiency of the extracts and the adsorption
isotherm of the process were calculated using Frumkin, Freundlich, Langmuir and Temkin adsorption theories
and the surface morphology studied using Scanning Electron Microscopy (SEM). It was observed that the
plant extract retarded the acid induced corrosion of aluminium and the volume of hydrogen gas evolved
reduced with increasing extract concentration. The adsorption studies revealed that Langmuir isotherm is the
best model for the adsorption of Azadirachta indica (R2 = 0.999) on aluminium surface. This implied that the
Azadirachta indica extracts with aluminium metal undergoes chemisorption
Development and Evaluation of New Indices for Sediment-associated Contaminants.
New indices (modified hazard quotient, mHQ and ecological contamination index, ECI) are developed for evaluating sediment-associated heavy metals contamination. In evaluating the proposed indices, the concentration and chemical fractionation of five heavy metals (Cd, Cr, Cu, Ni and Pb) determined in benthic sediments from five tropical ecosystems off the Bight of Bonny were used to assess the degree of contamination and estimate the extent of anthropogenic inputs from industrial activities into these ecosystems. The analysis shows that the mean concentrations (mg/kg, dw) of Cd, Cr, Cu, Ni and Pb vary from 4.33 – 5.67, 11.12 – 28.52, 30.26 – 43.72, 2.02 – 2.60 and 162.0 – 190.37, respectively. An important observation is that the mean metal levels during the wet and dry seasons did not show significant variability at all sites. The spatial distribution and severity of sediment-associated contamination by heavy metals based on the developed indices (mHQ and ECI) are in the descending sequence: Cd>Pb>Cu>Cr>Ni. Hence, the observed trend is in good agreement with existing pollution indices. Contamination severity index, mean hazard quotients and modified risk assessment code are also used to identify the pollution hotspots, which reflect medium risk contamination ecological systems. Aquatic pollution indicators (potential contamination index, ECI, hazard quotients, and mHQ) reveal significant anthropogenic contamination of Cd and Pb in the sediments, while Cr, Cu and Ni show relatively low degree of contamination. PCI generally follows the sequence Cd>Pb>Cu>Cr>Ni. Principal component analysis (PCA) and factor analysis indicate that heavy metals in the benthic sediments originate mostly from anthropogenic sources
Evaluation of the Chemical Composition of Soil at E-waste Blazing Sites in Computer Village, Ikeja, Lagos, Nigeria
The evaluation of open blazing of electronic waste on the chemical composition of three different
soil where e-waste were regularly being burnt with control samples at various distances away from
each blazing site at computer village, Ikeja, Lagos, Nigeria was carried out using Atomic Absorption
Spectroscopy. The mean concentrations of Pb, Cr, Zn, Cd and Cu from the three locations were found to be 120.3±0.4, 18.7±1.3, 90.3±0.4, 16.4±0.5 and 60.3±2.0 mg/kg respectively. There was
gradual decrease in heavy metals concentrations at various distances away from each blazing site
as the distances increase which suggested that there were leaching of these heavy metals from ewaste
containing substances. Pearson correlation revealed that some of the heavy metals showed
both positive and negative correlations with each other. When compared with standard values, only
cadmium exceeded the tolerable limit recommended by European Union and USEPA. Thus, open
blazing of e-waste contributed to the concentrations of these heavy metals in the soils