Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Leena Welling"'
Autor:
Ilse Heiskanen, Keijo Mäntykoski, Leena Welling, Pentti Ruuttunen, Pirkko Laitinen, Jukka Ahtiainen, R. Maarit Niemi, Anne Rahkonen
Publikováno v:
Applied Soil Ecology. 41:293-304
In the conventional cultivation of potatoes, weed control and the control of potato late blight caused by Phytophthora infestans are carried out by the application of herbicides and fungicides. We investigated the impacts of the herbicides metribuzin
Publikováno v:
Agricultural Water Management. 84:53-64
A case-study was design in order to rank three alternative herbicides according to their exposure to surface waters. Herbicide persistence and losses to surface waters were studied in an uncultivated Finnish field (ca. 3500 m2, slope
Autor:
Jaana Kositinen, Leena Welling, Jaakko Paasivirta, Tiina Rantio, Marja Keinänen, Tarja Hyötyläinen, Pekka J. Vuorinen
Publikováno v:
Chemosphere. 34:1151-1166
Organochlorine concentrations in the muscle of female Baltic salmon (Salmo salar), ascending for spawning in the Simojoki River on the north-eastern coast of the Gulf of Bothnia from 1988 to 1992 are given in this paper in relation to reproduction su
Autor:
Mirja Lahtiperä, Seija Sinkkonen, Jaakko Paasivirta, A. Vattulainen, Leena Welling, Leena Lahti
Publikováno v:
Chemosphere. 32:1971-1982
Short chain aliphatic halocarbons (SCAHs) and semivolatile organic compounds (SOCs) were analyzed in pine needles collected in the surroundings of a metal scrap plant. SCAHs were determined by purge and trap GC/MS and SOCs by dual column GC/ECD. Stat
Autor:
Raija Paukku, Seija Sinkkonen, Leena Welling, Keijo Mäntykoski, Paula Maatela, Jaana Koistinen, Jaakko Paasivirta, Tauno Kuokkanen, Tiina Rantio, Anna-Lea Rantalainen
Publikováno v:
Chemosphere. 27:447-454
Contents of total organic chlorine and polychlorinated phenols, guaiacols, catechols, benzenes, cymenes, cymenenes, naphthalenes, toxic dibenzodioxins, toxic dibenzofurans, toxic PCB congener 77, alkylated dibenzofurans, alkylated bibenzyls and alkyl
Autor:
Erkki Häsänen, Leena Welling, Tiina Rantio, Jaakko Paasivirta, Keijo Mäntykoski, Jaana Koistinen, Pentti K.G. Manninen, Jukka Särkkä
Publikováno v:
Chemosphere. 26:2147-2160
Chloride, total and extractable organically bound chlorine, chlorohydrocarbons, polychlorodibenzo-p-dioxins (PCDD) and polychlorodibenzofurans (PCDF) were measured in dated bottom sediment layers of two sites of the northern Lake Ladoga near pulp mil
Autor:
Leena Welling, Jaakko Paasivirta, Hannu Hakala, Juha Knuutinen, Reino Lammi, Raija Paukku, Terttu Otollinen, Jukka Särkkä
Publikováno v:
Chemosphere. 21:1355-1370
Chlorohydrocarbons and free and chemically bound chlorophenols, catechols and guaiacols were measured from lake sediments in Central Finland. Chlorohydrocarbons occurred at low backround levels except chlorocymenes from pulp mills and PCBs near the c
Autor:
Sari Rämö, Marja Ruohonen-Lehto, Liisa Eronen, Pirkko Laitinen, Leena Welling, Seija Oinonen, Leona Mattsoff, Katri Siimes
Publikováno v:
Pest management science. 62(6)
The fate of five herbicides (glyphosate, glufosinate-ammonium, phenmedipham, ethofumesate and metamitron) was studied in two Finnish sugar beet fields for 26 months. Soil types were sandy loam and clay. Two different herbicide-tolerant sugar beet cul
Publikováno v:
Chemosphere. 25:293-295
PCB mixtures occur in amounts of 5 to 6000 ppb in paper products made of recycled material. Contents in samples made from Central-European raw material were higher than those from Finnish material. However, the origin of some samples with high conten
Autor:
Mirja Lahtiperä, Jaakko Paasivirta, Anja Veijanen, M. Knuutila, Juha Knuutinen, Paul Klein, M. Vuorinen, Pekka J. Vuorinen, Raija Paukku, Leena Welling
Publikováno v:
Chemosphere. 16:1231-1241
Model compounds of polychlorinated anisoles (PCA) and veratroles (PCV) have been used in development of their analysis in fish. Individual PCAs and PCVs in fish were identified from GC peaks by retention time, selected ion monitoring and flavour in s