Reduced phosphorus retention by anoxic bottom sediments after the remediation of an industrial acidified lake area: Indications from P, Al, and Fe sediment fractions

A Bibliometric Analysis of Research on Acid Rain

“…Phosphorus-related research has also become attractive to researchers. The effects of AR on phosphorus release from phosphate rock [90], phosphorus leaching from contaminated soils [91], phosphorus availability in lakes [92,93], and phosphorus absorption efficiency by plants [94] have been investigated by numerous researchers. The effect of AR on the fractionation of heavy metals (such as Cd, Cu, Fe, Mn, Ni, Pb, and Zn) [95] has also attracted much attention.…”

Linking changes in sedimentary Cladocera assemblages to limnological variables in 67 Sudbury (Ontario, Canada) lakes reflecting various degrees of metal smelter impacts

“…The extent of ecological damage linked to smelting activities was not well characterized until the 1960s (Gorham and Gordon 1960;Beamish and Harvey 1972). Initial studies estimated that >7000 lakes in a 17 000 km 2 area became acidified, resulting from the long-range atmospheric transport and deposition of sulfates (Neary et al 1990).…”

“…Chemical and biological recovery in Sudbury in response to remediation efforts (i.e., massive emission reductions, reforestation, watershed liming, and fertilization) have been recognized internationally. For example, studies from Sudbury have been applied to examine the effects of emission reductions on lake chemistry (UK: Soulsby et al 1997;Sweden: Ek and Korsman 2001;Norway: Hesthagen et al 2007; USA: Nierzwicki-Bauer et al 2010;Australia: Beck et al 2020), sensitive fish populations (Hesthagen and Forseth 1998;, and the effects of multiple stressors on recovery (Gunn and Sandøy 2001;Altshuler et al 2011). Sudbury-area lakes vary greatly in their ecological responses to historical and current stressors that are moderated by their distance from the smelters, local geological features, trophic differences, and levels of anthropogenic watershed development (Keller 2009).…”

“…Sudbury-area lakes vary greatly in their ecological responses to historical and current stressors that are moderated by their distance from the smelters, local geological features, trophic differences, and levels of anthropogenic watershed development (Keller 2009). Urban lakes within the city of Sudbury, for example, are in close proximity to smelter stacks and fall within barren and semi-barren zones (Neary et al 1990) where smelter emissions had fumigated local vegetation (Freedman and Hutchinson 1980;Amiro and Courtin 1981) and metal emissions had contaminated lakes (Conroy et al 1976) and soils (Gundermann and Hutchinson 1995). In addition to the legacy effects of sulfate and metal deposition, some urban lakes are also affected by cultural eutrophication and road salt contamination resulting from watershed development.…”

“…Because of the broad distribution, rapid reproduction, and high abundances of cladocerans in most lakes, they are often considered in aquatic biomonitoring programs and are key to many paleoecotoxicological assessments (Zawisza et al 2016;Korosi et al 2017;Leppänen et al 2018). Cladocera are also sensitive to water temperature (Nevalainen et al 2013), and as such the recovery of zooplankton communities in Sudbury may also be affected by climate change (Palmer et al 2013), legacy metal contamination or toxicity (Khan et al 2012;Yan et al 2016), overland ephippial dispersal (Gray and Arnott 2011), and changes in predation pressures including the increased abundance of small planktivores such as yellow perch (Perca flavescens; Yan et al 2004;Webster et al 2013). With chemical recovery, the recolonization of acid-sensitive taxa and increased species richness has occurred in some areas of Sudbury in recent decades (Keller and Yan 1991;Holt and Yan 2003).…”