The Congress "Arsenic in the Environment" offers an international, multi- and interdisciplinary discussion platform for research and innovation aimed towards a holistic solution to the problem posed by the environmental toxin arsenic, with significant societal impact. The Congress has focused on cutting edge and breakthrough research in physical, chemical, toxicological, medical, agricultural and other specific issues on arsenic across a broader environmental realm. The Biennial Congress "Arsenic in the Environment" was first organized in Mexico City (As2006) followed by As2008 in Valencia (Spain), As2010 in Tainan (Chinese Taiwan), As2012 in Cairns (Australia), As2014 in Buenos Aires (Argentina) and As2016 in Stockholm (Sweden).
The 7th International Congress As2018 was held July 1-6, 2018, in Beijing, P. R. China and was entitled Environmental Arsenic in a Changing World.

The Congress addressed the broader context of arsenic research aligned on the following themes:
Theme 1: Arsenic Behaviour in Changing Environmental Media
Theme 2: Arsenic in a Changing Agricultural Ecosystem
Theme 3: Health Impacts of Environmental Arsenic
Theme 4: Technologies for Arsenic Immobilization and Clean Water Blueprints
Theme 5: Sustainable Mitigation and Management

Arsenic in drinking water (mainly groundwater) has emerged as an issue of global health concern. During last decade, the presence of arsenic in rice, possibly also other food of plant origins, has attained increasing attention. This is particularly true in the Asian countries, where the use of high arsenic groundwater as source of irrigation water and drinking water has been flagged as severe health concern. This has been accentuated by elevating arsenic concentrations in deep groundwater recharged from shallow high arsenic groundwater, which may have further detrimental effects on public health. Notably, China has been in the forefront of research on arsenic biogeochemical cycling, health effects of arsenic, technologies for arsenic removal, and sustainable mitigation measures. The Congress has attracted professionals involved in different segments of interdisciplinary research on arsenic in an open forum, and strengthened relations between academia, research institutions, government and non-governmental agencies, industries, and civil society organizations to share an optimal ambience for exchange of knowledge.

part |1 pages

Plenary presentations

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section Section 1|204 pages

Arsenic behaviour in changing environmental media

section 1.1|42 pages

Sources, transport and fate of arsenic in changing groundwater systems

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section 1.2|24 pages

Origin and reactivity of organic matter in high arsenic groundwater systems

section 1.3|40 pages

Biogeochemical processes controlling arsenic mobility, redox transformation and climate change impacts

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section 1.4|22 pages

Arsenic and other trace elements in groundwater of China

section 1.5|12 pages

Spatial and temporal evolution of arsenic in mine waste and tailings

section 1.6|1 pages

Arsenic mobility and fate in contaminated soils and sediments

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section 1.7|1 pages

Arsenic in dust and road deposits

section 1.8|1 pages

Advances and challenges in arsenic analysis in solid and aqueous matrix

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section Section 2|84 pages

Arsenic in a changing agricultural ecosystem and food chain effects

section 2.1|24 pages

Processes and pathways of arsenic in agricultural ecosystems

section 2.2|8 pages

Arsenic dynamics in rhizosphere

section 2.3|13 pages

Microbial ecology of arsenic biotransformation in soils

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section 2.4|10 pages

Molecular mechanisms of plant arsenic uptake

section 2.5|18 pages

Speciation and toxicity of arsenic in food chain

section 2.6|10 pages

Threshold values of food arsenic

section Section 3|84 pages

Health impacts of environmental arsenic

section 3.1|26 pages

Exposure and epidemiology of arsenic impacts on human health

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section 3.2|10 pages

Genetic predisposition of chronic arsenic poisoning

section 3.4|20 pages

Risk assessment of chronic ingestion

section 3.5|11 pages

Multi-metal synergies in chronic exposure cases

section 3.6|10 pages

Assessment of global burden of arsenic in drinking water and health care systems for exposed population

section Section 4|120 pages

Technologies for arsenic immobilization and clean water blueprints

section 4.1|120 pages

Adsorption and co-precipitation for arsenic removal

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section 4.3|16 pages

Nanotechnological applications in arsenic treatment

section 4.4|12 pages

Arsenic solidification and immobilization for contaminated soils

section 4.5|8 pages

Phytoremediation of arsenic-contaminated soils

section 4.6|33 pages

Innovative technologies

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section Section 5|119 pages

Sustainable mitigation and management

section 5.1|13 pages

Societal involvement for mitigations of long-term exposure

section 5.3|24 pages

Risk assessments and remediation of contaminated land and water environments – Case studies

section 5.4|47 pages

Mitigation and management of arsenic in a sustainable way