Blar i forfatter "Hassan, Ammar Ali"
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Concentrations and geographical patterns of persistent organic pollutants (POPs) in meat from semi-domesticated reindeer (Rangifer tarandus tarandus L.) in Norway
Hassan, Ammar Ali; Nøst, Therese Haugdahl; Brustad, Magritt; Sandanger, Torkjel M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-29)The study aimed at investigating the concentrations and geographical patterns of 11 polychlorinated biphenyls (PCBs) and 15 organochlorine pesticides (OCPs) in reindeer muscle samples (n = 100) collected from 10 grazing districts in Norway, 2009. Concentrations were examined for patterns related to geographical region as well as age and sex of animals. Concentrations measured for PCBs and OCPs in ... -
Concentrations and geographical variations of selected toxic elements in meat from semi-domesticated reindeer (Rangifer tarandus tarandus L.) in Mid- and Northern Norway : evaluation of risk assessment
Hassan, Ammar Ali; Brustad, Magritt; Sandanger, Torkjel Manning (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)Meat samples (n = 100) from semi-domesticated reindeer (Rangifer tarandus tarandus L.) were randomly collected from 10 grazing districts distributed over four Norwegian counties in 2008 and 2009. The main aim was to study concentrations and geographical variations in selected toxic elements; cadmium (Cd), lead (Pb), arsenic (As), copper (Cu), nickel (Ni) and vanadium (V) in order to assess the risk ... -
Level of selected toxic elements in meat, liver, tallow and bone marrow of young semi-domesticated reindeer (Rangifer tarandus tarandus L.) from Northern Norway
Hassan, Ammar Ali; Rylander, Charlotta; Brustad, Magritt; Sandanger, Torkjel Manning (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)Objectives. To gain knowledge on toxic elements in semi-domesticated reindeer and their distribution in meat, liver, tallow and bone marrow. The correlations between concentrations in meat and liver, as well as the use of the latter as an indicator for toxic elements in meat, were also investigated. Study design. Cross-sectional study on population of semi-domesticated reindeer from 2 northern ... -
Persistent organic pollutants in meat, liver, tallow and bone marrow from semi-domesticated reindeer (Rangifer tarandus tarandus L.) in Northern Norway
Hassan, Ammar Ali; Rylander, Charlotta; Brustad, Magritt; Sandanger, Torkjel Manning (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)Background: The aim of this project was to study 14 polychlorinated biphenyls (PCBs), 5 dichlorodiphenyl trichloroethans (DDTs), 12 organochlorine pesticides (OCPs) and 6 polybrominated diphenylethers (PBDEs) in meat, liver, tallow and bone marrow from semi-domesticated reindeer. Methods: Meat, liver, tallow, and bone marrow samples (n= 30) were collected from semi-domesticated reindeer in Northern ... -
Selected vitamins and essential elements in meat from semi-domesticated reindeer (Rangifer tarandus tarandus L.)in Mid- and Northern Norway : geographical variations and effect of animal population density
Hassan, Ammar Ali; Sandanger, Torkjel Manning; Brustad, Magritt (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)Meat samples (n = 100) were collected from semi-domesticated reindeer originating from 10 grazing districts in Norway. We aimed at studying concentrations, correlations, geographical variations and the effect of animal population density on vitamins A, B3, B7, B12 and E, and calcium, iron, zinc, selenium, chromium and cobalt. Mean concentrations of vitamins A, B3, B7; B12 and E were < 5 µg, 6.6 mg, ...