Search for dissertations about: "emerging chemicals"

Showing result 1 - 5 of 21 swedish dissertations containing the words emerging chemicals.

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

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm Univeristy

    Author : Deguo Kong; Stockholms universitet.; [2013]
    Keywords : 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;

    Abstract : Both chemical-specific (e.g. physical-chemical properties) and environmental (e.g. READ MORE

  2. 2. Occurrence and fate of emerging and legacy flame retardants from indoor environments to remote areas

    University dissertation from Stockholm : Department of Environmental Science and Analytical Chemistry, Stockholm University

    Author : Seth Newton; Stockholms universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Flame retardant; emerging; legacy; polybrominated diphenyl ethers; PBDE; HBCDD; long range transport; dust; air; soil; atmospheric deposition; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : Persistent organic pollutants (POPs) are toxic chemicals that can be found in various matrices in all corners of the planet, including remote areas such as the Arctic.  Several POPs are known and monitored but given the abundance of new chemicals in commerce about which little is known, chemicals that may be new POPs are constantly being screened for. READ MORE

  3. 3. Environmental Assessment of Green Chemicals - LCA of Bio-Based Chemicals Produced Using Biocatalysis

    University dissertation from Stockholm : Department of Environmental Science and Analytical Chemistry, Stockholm University

    Author : Linda Tufvesson; Lunds universitet.; Lund University.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; industrial biotechnology; green chemicals; Life cycle assessment; renewable resources;

    Abstract : It is of at most importance that society reduces its impact on the environment. In the chemical industry the use of renewable resources will play a fundamental role in the transition to more sustainable chemical products. Also industrial biotechnology, i.e. READ MORE

  4. 4. Environmental Assessment of Emerging Routes to Biomass Based Chemicals The Case of Ethylene

    University dissertation from Chalmers University of Technology

    Author : Christin Liptow; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; life cycle assessment; LCA; biomass based chemicals; ethylene; fermentation; gasification; wood; sugarcane; land use; time lags;

    Abstract : The production of bulk chemicals from biomass instead of fossil resources is perceived as one promising option to decrease society's environmental impact. However, though considerable research and development efforts aim at such production, it might take several more years before biomass based bulk chemicals are fully commercialized. READ MORE

  5. 5. Legacy persistent organic pollutants and chemicals of emerging concern in Sweden from indoor environments to remote areas

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Author : Seth Newton; Stockholms universitet.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; persistent organic pollutants; atmospheric deposition; arctic; flame retardant; POP; long range transport; Environmental Chemistry; miljökemi;

    Abstract : Bulk atmospheric deposition samples were taken every two months for a year in 2009-2010 at two sites in northern Sweden and analyzed for a suite of legacy and emerging persistent organic chemicals including legacy organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs)  and novel flame retardants (NFRs).  To further investigate the urban occurrence and contribution to remote contamination of flame retardants, indoor air, ventilation system air, and dust were sampled in several microenvironments in Stockholm during the winter of 2012 for analysis of PBDEs, isomer-specific hexabromocyclododecane (HBCDD), and NFRs. READ MORE