The transport and behaviour of isoproturon in unsaturated chalk cores
โ Scribed by T.J Besien; R.J Williams; A.C Johnson
- Book ID
- 114178844
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 576 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0169-7722
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The potential for degradation of atrazine or isoproturon in the unsaturated zone of two boreholes was studied under laboratory conditions. Intact and uncontaminated samples were obtained from regular depths of 0ยฑ16.45 m and 0ยฑ9 m using a percussion coring technique. The results showed that the deep
## Abstract Chalk streams are characterized by the presence of abundant stands of rooted macrophytes. There is typically a steep reduction in current velocity within stands and this promotes the trapping and accumulation of fine sediments. Fine sediments have also been shown to infill the gravel be