Trace element and ΣDDT concentrations in horticultural soils from the Tasman, Waikato and Auckland regions of New Zealand

Gaw, Sally; Wilkins, Alistair L.; Kim, N.D.; Palmer, Gabrielle; Robinson, Peter

doi:10.1016/j.scitotenv.2005.02.020

Cited by 69 publications

(41 citation statements)

References 31 publications

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“…The DDTs concentrations in the soil of JRW and QBC were in the same level with Mulan River Watershed (8.19 7 7.28 ng/g) and Qiulu River Watershed (5.26 7 2.93 ng/ g), nearby Xinghua Bay (Zhang et al, 2011b). When compared with other regions in the world, the DDTs concentrations in the soil of both JRW and QBC were much lower than Tasman, New Zealand (30-34,500 ng/g) (Gaw et al 2006), Bacninh, Vietnam (106.79 7 37.12 ng/g) (Toan et al 2009) and Germany (23.7-173 ng/g) (Manz et al, 2001). In terms of the distribution of DDTs in the JRW, o,p 0 -DDT and p,p 0 -DDE were dominant with nearly same mean value of 3.44 7 3.10 and 3.44 7 3.36 ng/g, respectively.…”

Section: Ocps In Surface Soil Of Jrw and Qbcmentioning

confidence: 69%

Organochlorine pesticides in soil, water and sediment along the Jinjiang River mainstream to Quanzhou Bay, southeast China

Yang

Zhang

et al. 2013

Ecotoxicology and Environmental Safety

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Section: Ocps In Surface Soil Of Jrw and Qbcmentioning

confidence: 69%

Organochlorine pesticides in soil, water and sediment along the Jinjiang River mainstream to Quanzhou Bay, southeast China

Yang

Zhang

et al. 2013

Ecotoxicology and Environmental Safety

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“…This provides a realistic explanation to observed traces of phosphorous. Besides, the occurrence of cadmium and copper traces in soils under horticulture land use is highlighted in several literatures [57,58]. The application of copper-based herbicides and fungicides in intensive horticulture is also commonplace [57,59].…”

Section: Large-scale Horticulture (Lshort) Land Usementioning

confidence: 99%

Understanding the Impact of Intensive Horticulture Land-Use Practices on Surface Water Quality in Central Kenya

Muriithi

2015

Environments

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Rapid expansion of commercial horticulture production and related activities contribute to declining surface water quality. The study sought to understand the impacts on select rivers in Laikipia and Meru, production hotspots. The specific aims were (1) to identify prevailing surface water quality by examining variations of 14 physico-chemical parameters, and (2) to categorize measured surface water quality parameters into land use types highlighting potential pollutant source processes. Water samples were collected in July and August 2013 along 14 rivers in the study area. The data were analyzed using principal component analysis (PCA) and discriminant analysis (DA). Principal components (PCs) explained 70% of the observed total variability of water quality, indicating a prevalence of heavy metal traces (cadmium, phosphate, and zinc). These were linked to the rigorous use of phosphate fertilizers and copper-based agrochemicals in intensive farming. DA provided four significant (p < 0.05) discriminant functions, with 89.5% correct assignment enabling the association of land use with observed water quality. Concentrations of dissolved solids, electro-conductivity, and salinity spiked at locations with intensive small-scale and large-scale horticulture. Understanding the impacts of intensive commercial horticulture and land use practices on water quality is critical to formulating ecologically sound watershed management and pollution abatement plans.

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“…Different land-use types usually cause different pollution statuses of OCPs because of different OCP application quantity, OCP remediation capacities, cultivation pattern, and soil properties (Harner et al 1999;Gong et al 2004;Wang et al 2005a;Gaw et al 2006). Soils from different land-use types were analyzed in order to determine the spatial variability of the OCP concentrations in different soils.…”

Section: Spatial Variability Of Hch and Ddt In Soils Under Different mentioning

confidence: 99%

Spatial variability and temporal trends of HCH and DDT in soils around Beijing Guanting Reservoir, China

Lü

Wang

et al. 2010

Environ Geochem Health

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Spatial variability and temporal trends in concentrations of the organochlorine pesticides (OCPs), hexachlorocyclohexane (HCH) and dichlorodiphenyltrichloroethane (DDT), in surface soils around Beijing Guanting Reservoir (GTR) were studied in 2003 and 2007. Concentrations of the two OCPs in soils around GTR were generally less than reference values set by the Chinese government for the protection of agricultural production and human health. Among the OCPs, b-HCH and p, p 0 -DDE were the two predominant compounds. This result indicates that the HCH and DDT residues in soils were primarily from historical use. Based on kriging, a spatial distribution of HCH and DDT around the GTR was observed. Spatial variability indicated how HCH and DDT had been applied and been distributed in the past. Between 2003 and 2007, concentrations of HCH and DDT decreased more rapidly in orchard soils than those in fallow soils.

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Trace element and ΣDDT concentrations in horticultural soils from the Tasman, Waikato and Auckland regions of New Zealand

Cited by 69 publications

References 31 publications

Organochlorine pesticides in soil, water and sediment along the Jinjiang River mainstream to Quanzhou Bay, southeast China

Organochlorine pesticides in soil, water and sediment along the Jinjiang River mainstream to Quanzhou Bay, southeast China

Understanding the Impact of Intensive Horticulture Land-Use Practices on Surface Water Quality in Central Kenya

Spatial variability and temporal trends of HCH and DDT in soils around Beijing Guanting Reservoir, China

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