Heavy metals in mosquito larval habitats in urban Kisumu and Malindi, Kenya, and their impact

Paul O. Mireji, Joseph Keating, Ahmed Hassanali, Charles M. Mbogo, Hudson Nyambaka, Samuel Kahindi, John C Beier

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Concentrations and distribution of cadmium, chromium, copper, iron, lead, manganese and zinc in mosquito larval habitats in urban Kisumu and Malindi, Kenya and their effect on the presence of Anopheles gambiae, Aedes aegypti, Culex quinquefasciatus and Anopheles funestus larvae were investigated. Manganese and iron were the most prevalent heavy metals in water of larval habitats in urban Kisumu and Malindi, respectively. Iron was the most prevalent heavy metal in bottom sediments in larval habitats in both cities. The highest concentrations of all heavy metals, except cadmium and iron, were recorded in the poorly planned-well drained stratum in the two cities. All heavy metals were more concentrated in human-made than in natural larval habitats. Copper was positively associated with the presence of Ae. aegypti, and lead was associated with the presence of An. gambiae and Ae. aegypti in urban Kisumu. Absence of significant correlation between the other metals and mosquito species in both cities, despite relatively high concentrations, suggest that the local larval populations, including key malaria vectors have adapted to the detected levels of these metals.

Original languageEnglish
Pages (from-to)147-153
Number of pages7
JournalEcotoxicology and Environmental Safety
Volume70
Issue number1
DOIs
StatePublished - May 1 2008

Fingerprint

Kenya
Heavy Metals
Culicidae
mosquito
Heavy metals
Ecosystem
Iron
heavy metal
Anopheles gambiae
iron
habitat
Manganese
Cadmium
Copper
manganese
cadmium
Lead
Metals
copper
Culex

Keywords

  • Heavy metals
  • Human-made habitats
  • Larval habitats
  • Mosquitoes
  • Natural habitats
  • Strata
  • Tolerance

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Science(all)

Cite this

Heavy metals in mosquito larval habitats in urban Kisumu and Malindi, Kenya, and their impact. / Mireji, Paul O.; Keating, Joseph; Hassanali, Ahmed; Mbogo, Charles M.; Nyambaka, Hudson; Kahindi, Samuel; Beier, John C.

In: Ecotoxicology and Environmental Safety, Vol. 70, No. 1, 01.05.2008, p. 147-153.

Research output: Contribution to journalArticle

Mireji, Paul O. ; Keating, Joseph ; Hassanali, Ahmed ; Mbogo, Charles M. ; Nyambaka, Hudson ; Kahindi, Samuel ; Beier, John C. / Heavy metals in mosquito larval habitats in urban Kisumu and Malindi, Kenya, and their impact. In: Ecotoxicology and Environmental Safety. 2008 ; Vol. 70, No. 1. pp. 147-153.
@article{5df93d0618384a4daf723418ae962567,
title = "Heavy metals in mosquito larval habitats in urban Kisumu and Malindi, Kenya, and their impact",
abstract = "Concentrations and distribution of cadmium, chromium, copper, iron, lead, manganese and zinc in mosquito larval habitats in urban Kisumu and Malindi, Kenya and their effect on the presence of Anopheles gambiae, Aedes aegypti, Culex quinquefasciatus and Anopheles funestus larvae were investigated. Manganese and iron were the most prevalent heavy metals in water of larval habitats in urban Kisumu and Malindi, respectively. Iron was the most prevalent heavy metal in bottom sediments in larval habitats in both cities. The highest concentrations of all heavy metals, except cadmium and iron, were recorded in the poorly planned-well drained stratum in the two cities. All heavy metals were more concentrated in human-made than in natural larval habitats. Copper was positively associated with the presence of Ae. aegypti, and lead was associated with the presence of An. gambiae and Ae. aegypti in urban Kisumu. Absence of significant correlation between the other metals and mosquito species in both cities, despite relatively high concentrations, suggest that the local larval populations, including key malaria vectors have adapted to the detected levels of these metals.",
keywords = "Heavy metals, Human-made habitats, Larval habitats, Mosquitoes, Natural habitats, Strata, Tolerance",
author = "Mireji, {Paul O.} and Joseph Keating and Ahmed Hassanali and Mbogo, {Charles M.} and Hudson Nyambaka and Samuel Kahindi and Beier, {John C}",
year = "2008",
month = "5",
day = "1",
doi = "10.1016/j.ecoenv.2007.03.012",
language = "English",
volume = "70",
pages = "147--153",
journal = "Ecotoxicology and Environmental Safety",
issn = "0147-6513",
publisher = "Academic Press Inc.",
number = "1",

}

TY - JOUR

T1 - Heavy metals in mosquito larval habitats in urban Kisumu and Malindi, Kenya, and their impact

AU - Mireji, Paul O.

AU - Keating, Joseph

AU - Hassanali, Ahmed

AU - Mbogo, Charles M.

AU - Nyambaka, Hudson

AU - Kahindi, Samuel

AU - Beier, John C

PY - 2008/5/1

Y1 - 2008/5/1

N2 - Concentrations and distribution of cadmium, chromium, copper, iron, lead, manganese and zinc in mosquito larval habitats in urban Kisumu and Malindi, Kenya and their effect on the presence of Anopheles gambiae, Aedes aegypti, Culex quinquefasciatus and Anopheles funestus larvae were investigated. Manganese and iron were the most prevalent heavy metals in water of larval habitats in urban Kisumu and Malindi, respectively. Iron was the most prevalent heavy metal in bottom sediments in larval habitats in both cities. The highest concentrations of all heavy metals, except cadmium and iron, were recorded in the poorly planned-well drained stratum in the two cities. All heavy metals were more concentrated in human-made than in natural larval habitats. Copper was positively associated with the presence of Ae. aegypti, and lead was associated with the presence of An. gambiae and Ae. aegypti in urban Kisumu. Absence of significant correlation between the other metals and mosquito species in both cities, despite relatively high concentrations, suggest that the local larval populations, including key malaria vectors have adapted to the detected levels of these metals.

AB - Concentrations and distribution of cadmium, chromium, copper, iron, lead, manganese and zinc in mosquito larval habitats in urban Kisumu and Malindi, Kenya and their effect on the presence of Anopheles gambiae, Aedes aegypti, Culex quinquefasciatus and Anopheles funestus larvae were investigated. Manganese and iron were the most prevalent heavy metals in water of larval habitats in urban Kisumu and Malindi, respectively. Iron was the most prevalent heavy metal in bottom sediments in larval habitats in both cities. The highest concentrations of all heavy metals, except cadmium and iron, were recorded in the poorly planned-well drained stratum in the two cities. All heavy metals were more concentrated in human-made than in natural larval habitats. Copper was positively associated with the presence of Ae. aegypti, and lead was associated with the presence of An. gambiae and Ae. aegypti in urban Kisumu. Absence of significant correlation between the other metals and mosquito species in both cities, despite relatively high concentrations, suggest that the local larval populations, including key malaria vectors have adapted to the detected levels of these metals.

KW - Heavy metals

KW - Human-made habitats

KW - Larval habitats

KW - Mosquitoes

KW - Natural habitats

KW - Strata

KW - Tolerance

UR - http://www.scopus.com/inward/record.url?scp=40949133494&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40949133494&partnerID=8YFLogxK

U2 - 10.1016/j.ecoenv.2007.03.012

DO - 10.1016/j.ecoenv.2007.03.012

M3 - Article

C2 - 17532467

AN - SCOPUS:40949133494

VL - 70

SP - 147

EP - 153

JO - Ecotoxicology and Environmental Safety

JF - Ecotoxicology and Environmental Safety

SN - 0147-6513

IS - 1

ER -