Sökning: "Matthew Macleod"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Matthew Macleod.

  1. 1. Methods to measure mass transfer kinetics, partition ratios and atmospheric fluxes of organic chemicals in forest systems

    Författare :Damien Johann Bolinius; Annika Jahnke; Matthew MacLeod; Michael McLachlan; Antonio Di Guardo; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrophobic organic chemicals; vegetation; modified Bowen ratio; surface-atmosphere fluxes; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Vegetation plays an important role in the partitioning, transport and fate of hydrophobic organic contaminants (HOCs) in the environment. This thesis aimed at addressing two key knowledge gaps in our understanding of how plants exchange HOCs with the atmosphere: (1) To improve our understanding of the uptake of HOCs into, and transfer through, leaves of different plant species which can significantly influence the transport and fate of HOCs in the environment; and (2) To evaluate an experimental approach to measure fluxes of HOCs in the field. LÄS MER

  2. 2. How to estimate environmental persistence : Understanding persistence of organic micropollutants in rivers from a multidisciplinary perspective

    Författare :Claudia Coll Mora; Anna Sobek; Matthew MacLeod; Emma J. Rosi; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organic micropollutants; biodegradation; persistence; rivers; flume mesocosms; Junge relationships; OECD 308 bottle incubations; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Organic micropollutants such as food additives, pharmaceuticals and personal care products are found in rivers worldwide. Persistence is a key criteria in chemical risk assessment as micropollutants that are persistent pose an exposure hazard to humans and the environment. LÄS MER

  3. 3. Chemical Pollutants Released to the Marine Environment by Degradation of Plastic Debris

    Författare :Berit Gewert; Matthew MacLeod; Magnus Breitholtz; Merle Plassmann; Martin Wagner; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plastic; microplastic; degradation; leachates; weathering; photo-oxidation; marine environment; toxicity; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Since the beginning of the mass production in the 1940s, plastic has been manufactured in quickly increasing amounts. Plastic debris accumulates in the environment and lately much attention has been drawn to the pollution in the world’s oceans. LÄS MER

  4. 4. Forecasting chemical exposure in a changing world

    Författare :John D. Hader; Matthew MacLeod; Ian Cousins; Mark Huijbregts; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; global change; exposure modelling; dietary change; wastewater treatment; chemical fate and transport; Environmental Sciences; miljövetenskap;

    Sammanfattning : Exposure to anthropogenic chemicals in natural and built environments is a threat to humans and other species. Now and through the 21st Century, the world will experience a large number of global changes, including anthropogenic climate change, shifts in demographics, agricultural expansion, socioeconomic development, and an increasing number and volume of chemicals on the market. LÄS MER

  5. 5. Confronting new challenges in chemical assessment : emerging contaminants and climate change

    Författare :Deguo Kong; Ian Cousins; Matthew MacLeod; Mick Whelan; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; emerging chemicals; climate change; fate; multimedia model; risk assessment; physical-chemical property; uncertainty; Arctic; Baltic; time series; persistent organic pollutants; temporal trend; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Both chemical-specific (e.g. physical-chemical properties) and environmental (e.g. LÄS MER