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1.1. Aim of this report
Like water, chemicals are an essential part of our daily lives. However, some present risks to plants and animals living in water, or the animals eating them. The risks presented by some chemicals have been recognised for decades, while those presented by others, alone or in combination, are continually being identified. Understanding which chemicals continue to pose significant risks in or via water, and why, can help to improve controls which minimise harm.
Techniques are now available which provide integrated measures of toxicity or harm, in contrast to established chemical methods which measure particular substances. The relationship between substance and source is fundamental to the system for chemicals regulation, yet that is under strain with the thousands of chemicals in daily use. Effect-based methods, which provide an integrated measure of the “chemical health” of the aquatic environment, could therefore offer a link between the ecological and chemical status of surface water bodies under the WFD. Describing some of these newer techniques and reviewing information about key pollutants under the WFD, this report gives both a grounding in what is known and a view of how surface waters might be better protected in future.
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POLAND
This section does not reflect the text in the draft report. According to this section, this report should give a grounding in what is known and a view of how surface waters may be better protected in the future. A few sections of the draft document are focused on the unknown data and lacking of links between data reported. The aim of the report needs to be filled with definition of the group of recipients of this report and why it is important for them to be familiar with the outcome of this report.
DE-SH, NW:
'However, some present risks to plants and animals living in water, or the animals eating them.'
Please change to 'some chemicals present' and what about human health based on consumption of fishery products?
We propose to adjust the goals of this report, due to its content. The submitted report is more comprehensive than the presented aims.