Whole-catchment inventories of trace metals in soils and sediments in mountain lake catchments in the Central Pyrenees: Apportioning the anthropogenic and natural contributions

Bacardit, Montserrat; Krachler, Michael; Camarero, Lluís

doi:10.1016/j.gca.2010.10.030

Cited by 46 publications

(42 citation statements)

References 54 publications

(43 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Almost with no exception, all lakes analysed show increased values of lead with an isotopic composition that reveals its polluting origin in the uppermost sediment layers (Bacardit et al 2012). Other contaminating trace metals such as cadmium, copper, mercury, nickel and zinc are often found accompanying lead.…”

Section: Trace Elements Pollutionmentioning

confidence: 93%

“…Besides lake sediments, soils are another matrix where trace elements have accumulated during centuries of contamination. The amount of polluting trace elements in high mountain soils (averaged taking into account bare rock areas) in the Pyrenees (Bacardit et al 2012) can be quantified in milligrams per square metre (mg m −2 ; Pb and Zn * 1000, Ni and Cu * 200, Cd * 10), whereas yearly atmospheric deposition is measured as micrograms per square metre (µg m −2 ; Zn * 10,000, Pb and Cu * 1000, Ni * 250, Cd * 25). That is, soils hold (on a per unit area) an anthropogenic trace elements burden that is about three orders of magnitude larger than the current yearly deposition, even larger if natural (i.e.…”

Section: Trace Elements Pollutionmentioning

confidence: 99%

See 1 more Smart Citation

Atmospheric Chemical Loadings in the High Mountain: Current Forcing and Legacy Pollution

Camarero

2017

High Mountain Conservation in a Changing World

Self Cite

View full text Add to dashboard Cite

Human emissions have changed the chemistry of atmosphere. Potentially toxic chemicals have been spread, and the global cycles of some key elements have been disrupted. Because enhanced atmospheric precipitation and cold trapping caused by elevation, high mountain ecosystems are considered as regional convergence areas of atmospheric pollutants. In this chapter, research on surface waters acidification, pollution by trace elements, and atmospheric nutrient inputs in the Pyrenees is reviewed. Pyrenean lakes have experienced only a moderate acidification, due partly to an also moderate acid load and partly to the neutralising cations carried by dust. Presently, declining concentrations of sulphate in lakes indicate that recovery is proceeding. Pollution by trace elements dates more than two millennia back. The primary accumulation sites are the sediments of lakes. Soils also hold an important burden, and there is evidence that some elements are being currently remobilised. This is causing a delayed pollution, despite deposition of several trace metals is declining. The emissions of artificial reactive nitrogen have caused increased deposition on the Pyrenean catchments, which are thus nitrogen saturated. A parallel increase of phosphorus deposition has occurred, likely caused by climatic reasons. The combined effect of both seems to be an enhanced uptake of nitrogen by phytoplankton causing a lower nitrogen concentration in lakes and a possible shift from phosphorus-to-nitrogen limitation of phytoplankton growth, as well as an incipient eutrophication. All these are examples of impacts in remote natural areas that require a global strategy of conservation beyond the boundaries of the ecosystems affected.

show abstract

Section: Trace Elements Pollutionmentioning

confidence: 93%

Section: Trace Elements Pollutionmentioning

confidence: 99%

Atmospheric Chemical Loadings in the High Mountain: Current Forcing and Legacy Pollution

Camarero

2017

High Mountain Conservation in a Changing World

Self Cite

View full text Add to dashboard Cite

show abstract

“…The ecological consequences, if any, of these atmospheric pollutants have not been evaluated yet. In some areas, the accumulation of some trace metals in soils is very high so, under lower current deposition, they have become sources of pollutants to sediments, plants, and animals, rather than sinks (Bacardit et al 2012). There is a legacy of pollutants in soils that may maintain high pollutant fluxes for some decades.…”

Section: Atmospheric Contaminantsmentioning

confidence: 99%

The High Mountain Conservation in a Changing World

Catalan

Ninot

Aniz³

2017

Advances in Global Change Research

View full text Add to dashboard Cite

The high mountains have retained a noticeable degree of wilderness even in the most populated regions of the planet. This is the reason why many nature reserves have been established in these landscapes. Currently, climate change and long-range transport of contaminants are affecting those protected areas, and thus conservation priorities may be challenged by these new pressures. In fact, many high mountains hold a legacy of on-site past human activities (e.g., pasturing, forestry, mining), which in some areas may partially persist, even increase, whereas in others are substituted by new uses (e.g., tourism, mountain sport). Therefore, high mountain nature reserves face a challenging future. The conservation goals have to be revised. Former alternative paradigms respectively based on the preservation of wilderness or a traditional cultural landscape will be insufficient. Indeed, global change provides new goals for the high mountain conservation areas as suitable places where to study the nature's response in the absence of, or combined with, other local pressures. Different branches of sciences may contribute to inform about the changes; however, conservation is ultimately a societal endeavour and thus their goals must be linked to the social demand for a fair society in a sustainable planet. As an added-value to this task, the high mountains hold a large amount of symbolism.

show abstract

“…Organic matter content (OM) from the Yangtze River estuary was estimated by loss on ignition (LOI) for 4 h at 550°C (Bacardit et al, 2012). The organic matter in the sediments from Sheyang was determined by potassium dichromate-volumetric method (Liu et al, 2013b).…”

Section: Radionuclides and Other Analysesmentioning

confidence: 99%

Heavy metal spatial variability and historical changes in the Yangtze River estuary and North Jiangsu tidal flat

Pan

Sun

et al. 2015

Marine Pollution Bulletin

View full text Add to dashboard Cite

Whole-catchment inventories of trace metals in soils and sediments in mountain lake catchments in the Central Pyrenees: Apportioning the anthropogenic and natural contributions

Cited by 46 publications

References 54 publications

Atmospheric Chemical Loadings in the High Mountain: Current Forcing and Legacy Pollution

Atmospheric Chemical Loadings in the High Mountain: Current Forcing and Legacy Pollution

The High Mountain Conservation in a Changing World

Heavy metal spatial variability and historical changes in the Yangtze River estuary and North Jiangsu tidal flat

Contact Info

Product

Resources

About