The trends are calculated using a median of pairwise slopes algorithm. Black dots represent high confidence in the sign of the long-term trend in the box (if the
5th to 95th percentile slopes are of the same sign). Boxes which have a thick outline contain at least three stations. Area averaged annual time series of percentage changes and trend lines are shown below each map for one area in northern Europe (blue line, 5.6 to 16.9 °E and 56.2 to 66.2 °N) and one in south‑western Europe (red line, 350.6 to 1.9 °E and 36.2 to 43.7 °N).
It is largely biodegradable, less polluting to aquatic habitats and just as effective a cleaning agent as less environmentally friendly options. Look for eco-friendly dishwashing detergents, such as those labelled with the European flower eco-label (see www.eco-label.com to find one in your country).
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