Dataset for PCBs and OCPs in intertidal sediment and surface-mixed layer water from Lagos lagoon, southwest coast of Nigeria.

Sediment quality and the integrity of coastal aquatic ecosystems are deteriorating, particularly in regions with unregulated discharges of chemical pollutants into the environment. Although organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) have been banned in recent decades for their adverse effects on the environment and human and animal health, these organic micropollutants are frequently detected in many aquatic systems. This dataset reports baseline concentrations of 27 PCBs and 20 OCPs analysed in surface-mixed layer water and sediment samples collected from designated sampling locations in the Lagos lagoon, off the Gulf of Guinea, Nigeria.

Pollution of the Niger Delta with total petroleum hydrocarbons, heavy metals and nutrients in relation to seasonal dynamics.

The African Niger Delta is among the world's most important wetlands in which the ecological effects of intensive oil exploitation and global change are not well documented. We characterized the seasonal dynamics and pollution with total-petroleum-hydrocarbons (TPHs), heavy-metals (HMs) and nutrient-loads in relation to climate-driven variables. High TPH concentrations up to 889 mg/L and HMs up to 13.

Concentration and Distribution of Organochlorine Pesticides in Sediments of the Niger River, Nigeria.

Background: Pollution in aquatic ecosystems is a serious environmental concern. There is a great need for constant assessment and monitoring of hazardous substances, particularly in aquatic environments in developing countries, as rivers are media with easy trans-boundary transport of chemical substances.

Objectives: The present study assessed the occurrence and distribution of organochlorine pesticides (OCPs) in the sediments of the Niger River, Nigeria.

Polychlorinated Biphenyls in Brackish Water Fish in the River Niger, Nigeria.

Background: Anthropogenic polychlorinated biphenyls (PCBs) in aquatic environments poses human and ecological health risks in Nigeria.

Objectives: This study determined the concentrations of PCBs in brackish water fish in the River Niger to assess the contamination status of fish consumed by the local population.

Methods: The sampled fish species included Drepane africana, Mochokus niloticus, Chrysichthys nigrodigitatus, Pristipoma jubelini, Vomer septapinis, Pseudotolithus senegalensis, Mugil cephalus, Pseudotolithus elongatus, Sphyraena piscatorum and Lutjanus goreensis, purchased from landing sites.

Levels of Organochlorine Pesticides in Brackish Water Fish from Niger River, Nigeria.

Investigation of the levels of organochlorine pesticides (OCPs) in fish samples was carried out to assess the contamination status of Niger River. Ten different brackish water species of fish (6 samples for each, making a total of 60) were purchased from landing sites at the Delta area of Niger River. These were , and .

Selected persistent organic pollutants (POPs) in water of River Niger: occurrence and distribution.

This study assessed the levels and distribution of selected persistent organic pollutants (POPs) in water of River Niger. The selected POPs of interest were organochlorine pesticides (OCPs). Fifteen representative sites along River Niger: three each from Gurara River (tributary) in Niger State, Lokoja (confluence) in Kogi State, Onitsha in Anambra State, Brass and Nicolas Rivers (tributaries) in Bayelsa State were selected for sampling quarterly over a 24-month period.

Polychlorinated biphenyls (PCBs) in River Niger, Nigeria: Occurrence, distribution and composition profiles.

Contamination of rivers with persistent organic pollutants (POPs) is an issue of current global concern. Polychlorinated biphenyls (PCBs) are POPs with origin from commercial, incineration and industrial sources. Hence, there is a need for monitoring their occurrence and distribution in the environment.

Anopheles gambiae s.s. breeding in polluted water bodies in urban Lagos, southwestern Nigeria.

Background & Objective: Urban malaria is on the rise in Nigeria due to rapid industrialisation and developmental activities. A study was undertaken in Lagos, Nigeria to study the Anopheles breeding in polluted water bodies.

Methods: Anopheles larval breeding habitats were surveyed and water samples from 24 larval breeding sites from four strategic areas in urban Lagos were analysed.