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Cadmium contamination in agricultural soils of Bangladesh and management by application of organic amendments: evaluation of field assessment and pot experiments
- Source :
- Environmental Geochemistry and Health. 43:3557-3582
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- In recent years, cadmium (Cd) contamination in agricultural soils and its subsequent transfer to crops is one of the high-priority environmental and public health issues of global concern, especially in densely populated developing countries like Bangladesh. However, no effective strategy has been introduced or implemented yet to manage Cd-contaminated soils in order to sustain agricultural production with no human health risks. In this study, agricultural soil samples were collected from 60 locations of 10 upazilas from Tangail district to assess the extent of soil Cd contamination. The Cd concentration ranged from 0.83 to 4.08 mg kg−1 with a mean of 2.17 mg kg−1 in topsoil (0–15 cm), and from 0.67 to 3.74 mg kg−1 with a mean of 2.10 mg kg−1 in subsoil (16–30 cm). The values of contamination factor (CF) indicated that all the sampling locations were found to be highly contaminated with Cd. Pot trials with the application of different doses of biochar and vermicompost in Cd-contaminated soil (0.8 mg kg−1 Cd) revealed that integrated application of biochar (5 t ha−1) and vermicompost (5 t ha−1) was the best treatment that significantly (p
- Subjects :
- Topsoil
Environmental Engineering
010504 meteorology & atmospheric sciences
Soil test
General Medicine
010501 environmental sciences
Contamination
engineering.material
01 natural sciences
Agronomy
Geochemistry and Petrology
Loam
Soil water
Biochar
engineering
Environmental Chemistry
Environmental science
Subsoil
Vermicompost
0105 earth and related environmental sciences
General Environmental Science
Water Science and Technology
Subjects
Details
- ISSN :
- 15732983 and 02694042
- Volume :
- 43
- Database :
- OpenAIRE
- Journal :
- Environmental Geochemistry and Health
- Accession number :
- edsair.doi...........4375728a7c4373332680cc05c2d9b07d