Abstract Sulphate (SO 4 2-) concentrations in freshwaters have increased globally over the
last decades even though a strong reduction in atmospheric sulphur (S) deposition has …

Based on an analysis of related core papers and reports, this review presents a historical
perspective on ambient air pollution and ambient air quality development in the modern-day …

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 …

Acid deposition arising from sulphur (S) and nitrogen (N) emissions from fossil fuel
combustion and agriculture has contributed to the acidification of terrestrial ecosystems in …

Water quality data for 56 long-term monitoring sites in eight European countries are used to
assess freshwater responses to reductions in acid deposition at a large spatial scale. In a …

To assess the concern over declining base cation levels in forest soils caused by acid
deposition, input-output budgets (1990s average) for sulphate (SO 4), inorganic nitrogen …

We present long‐term changes in Norwegian lake water quality across regional gradients in
atmospheric pollution, air temperature, hydrology, and vegetation using (a) a national …

In this paper the concept of resilience is discussed on the base of 13 case studies from the
German branch of the International Long-Term Ecological Research Program. In the …

Abstract The international Long-Term Ecological Research Network (ILTER) encompasses
hundreds of long-term research/monitoring sites located in a wide array of ecosystems that …

Long-term records of nitrogen in deposition and streamwater were analysed at 30 sites
covering major acid sensitive regions in Europe. Large regions of Europe have received …