عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
TLpq2456895601
انگلیسی
Effects of Pharmaceutical Effluent on the Physico-Chemical Parameters and Distribution of Plankton in Okun Stream in Ilorin, Kwara State, Nigeria
[Thesis]
Abdulwahab, Kazeem
Oladimeji, A A
Kwara State University (Nigeria)
2020
88
M.S.
Kwara State University (Nigeria)
2020
Pharmaceuticals effluent which has a wide range of physical and chemical properties is released into the environment causing actual and potential ecological damages. To date, there is paucity of information regarding its effects on the biota in Okun stream, Kwara State Nigeria. Therefore, this study was carried out to determine the effects of pharmaceutical effluent on the physico-chemical parameters and plankton composition, in the stream to know the ecological implications of the effluent. Five sampling stations were chosen along the stream from which water samples were collected between the months of August 2018 to January 2019, for water quality and plankton composition. The physico-chemical parameters of the water were determined using standard methods. The mean variation of the pH ranged between 6.27-7.70, temperature ranged 23.20-31.80C, Electrical conductivity ranged between 420-519us/cm, dissolved oxygen ranged between 3.03-5.68mg/l, biological oxygen demand ranges between 5.12-7.02 mg/l, suspended solids was between 33.00-55.00 mg/l, sulphate ranged between 5.68 - 14.99 mg/l, phosphate ranges between 6.72-16.73 mg/l, chemical oxygen demand ranges between 14.03-20.27mg/l, nitrate ranges between 1.02-6.40 mg/l, lead ranges between 0.45 -1.06 mg/l, copper ranges between 0.10-0.97 mg/l, chromium 0.03-0.51 mg/l, cadmium ranges between 0.10-0.68 mg/l. The zooplankton sample collections were done using plankton net. Phytoplankton in one litre of water sample were filtered, resuspended in 50 ml of lugol solution and later counted using Sedgewick counter. One way analysis of variance was used to compare means of various parameters along the location at significant level p< 0.05. The results show high abundance of Chlorophyta (17.00) and Cyanpophyta (14.00) in station B throughout the period of sampling while station D and E showed low abundance of Chlorophyta (4.00 and 2.00), Cyanophyta (5.00), Euglenophyta (3.00), Bacillariophyta (3.00) and Protozoans (3.00). Thus, this study shows high level of pollution in station B, (the point of discharge compared to other stations). It is therefore recommended that the effluent from the industry be subjected to thorough treatment before it is discharged into the receiving stream.
Zoology
Abdulwahab, Kazeem
Oladimeji, A A
مطالعه متن کتاب p
[Thesis]
276903
a
Y
