It is now accepted that some human-induced climate change is unavoidable. Potential
impacts on water supply have received much attention, but relatively little is known about the …

Acidification of lakes and rivers is still an environmental concern despite reduced emissions
of acidifying compounds. We analysed trends in surface water chemistry of 173 acid …

Algal toxins or red-tide toxins produced during algal blooms are naturally-derived toxic
emerging contaminants (ECs) that may kill organisms, including humans, through …

The main aim of the international UNECE monitoring program ICP Waters under the
Convention of Long-range Transboundary Air Pollution (CLRTAP) is to assess, on a …

Human activities are responsible for consistent N r export to the environment (Vitousek et al.,
1997; Schlesinger, 2009; Erisman et al., 2011, Chapter 2 this volume). The enrichment of …

Executive summary Nature of the problem (science/management/policy)• Freshwater
ecosystems play a key role in the European nitrogen (N) cycle, both as a reactive agent that …

Abstract The United States (US) has faced major environmental changes in recent decades,
including agricultural intensification and urban expansion, as well as changes in …

Research on the ecosystem impacts of acidifying pollutants, and measures to control them,
has focused almost exclusively on sulfur (S) and nitrogen (N) compounds. Hydrochloric acid …

Summary 1 Streams affected by acid deposition should now be recovering biologically, but
long‐term assessments are scarce. Here, we use the experimental catchments at Llyn …

This paper presents information on the spatial and seasonal patterns of river water chemistry
at approximately 800 sites in North West England based on data from the Environment …