Ecotoxicological effects on Lemna minor and Daphnia magna of leachates from differently aged landfills of Ghana

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F20%3A43917821" target="_blank" >RIV/60461373:22320/20:43917821 - isvavai.cz</a>

Výsledek na webu

<a href="https://authors.elsevier.com/a/1ZkmHB8cckUR~" target="_blank" >https://authors.elsevier.com/a/1ZkmHB8cckUR~</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2019.134295" target="_blank" >10.1016/j.scitotenv.2019.134295</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ecotoxicological effects on Lemna minor and Daphnia magna of leachates from differently aged landfills of Ghana

Popis výsledku v původním jazyce

Management of leachates generated by solid waste disposal is a very challenging aspect of landfill management in most parts of the world. In most developing countries, the leachates generated are discharged into the environment without treatment, leading to contamination of ground and surface waters and causing human health problems. Even though its potential risk has been established through chemical analyses, less work has been conducted on its effect on ecosystems. This study assessed the toxicity of leachates from three landfill sites of different ages from Ghana, namely Tema, Mallam and Oblogo, to aquatic organisms. Duckweed (Lemna minor) and crustaceans (Daphnia magna) toxicity tests were performed using exposures to concentrations of 6.25, 12.5, 25, 50 and 100 ml/l of the landfill leachates in control growth media. Physico-chemical properties of the leachates were also determined. The leachates from all the sites were toxic with IC 50 values ranging from 2.8 – 29.5%. The Oblogo landfill leachate (the oldest site) being most toxic to duckweed and Tema landfill leachate (the youngest site) most toxic to D. magna. Leachates characterized had varying concentrations of heavy metals (0.2 – 42.3 mg/L) with Cu and Cd below detectable limit. The organic component COD was below the permissible level (110 – 541 mg/L) and the TOC exceeded the permissible level (350 – 6920 mg/L). These results indicate that the age and other characteristics of the landfill sites contribute to the difference in the toxicity of the Ghana landfill leachates.

Název v anglickém jazyce

Ecotoxicological effects on Lemna minor and Daphnia magna of leachates from differently aged landfills of Ghana

Popis výsledku anglicky

Management of leachates generated by solid waste disposal is a very challenging aspect of landfill management in most parts of the world. In most developing countries, the leachates generated are discharged into the environment without treatment, leading to contamination of ground and surface waters and causing human health problems. Even though its potential risk has been established through chemical analyses, less work has been conducted on its effect on ecosystems. This study assessed the toxicity of leachates from three landfill sites of different ages from Ghana, namely Tema, Mallam and Oblogo, to aquatic organisms. Duckweed (Lemna minor) and crustaceans (Daphnia magna) toxicity tests were performed using exposures to concentrations of 6.25, 12.5, 25, 50 and 100 ml/l of the landfill leachates in control growth media. Physico-chemical properties of the leachates were also determined. The leachates from all the sites were toxic with IC 50 values ranging from 2.8 – 29.5%. The Oblogo landfill leachate (the oldest site) being most toxic to duckweed and Tema landfill leachate (the youngest site) most toxic to D. magna. Leachates characterized had varying concentrations of heavy metals (0.2 – 42.3 mg/L) with Cu and Cd below detectable limit. The organic component COD was below the permissible level (110 – 541 mg/L) and the TOC exceeded the permissible level (350 – 6920 mg/L). These results indicate that the age and other characteristics of the landfill sites contribute to the difference in the toxicity of the Ghana landfill leachates.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Science of the Total Environment

ISSN

0048-9697

e-ISSN

—

Svazek periodika

698

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

8

Strana od-do

1-7

Kód UT WoS článku

000500580700104

EID výsledku v databázi Scopus

—