Organoklorirani pesticidi u slatkovodnim ribama zagrebačkog područja

The aim of this study was to determine the level of organochlorine pesticides in freshwater fish from the Zagreb area, Croatia. The study included 215 freshwater fish samples from three sites: the Sava River, Lake Jarun, and five fishponds from the Zagreb surroundings. Organochlorine pesticides DDT and derivates, HCH, HCB, lindane, aldrin, dieldrin, endrin, heptachlor with epoxide, and methoxychlor were determined using the GC-ECD method. The determined amounts of organochlorine pesticides were within allowed concentration limits in all analysed fish samples. Median values ranged from below the detection limit of 0.01 µg kg-1 for dieldrin and metoxychlor to 2.00 µg kg-1 for DDT in the Cyprinidae fish family from the Sava River, Zagreb sampling site (group 1). This study has confirmed pesticide persistence in the overall ecosystem in our country despite the ban of some thirty years ago, like in many other parts of the world.Cilj istraživanja bio je utvrditi količinu organokloriranih pesticida u slatkovodnim ribama zagrebačkog područja. Obrađeno je ukupno 215 uzoraka slatkovodne ribe sa sljedećih triju lokacija: rijeka Sava, jezero Jarun i pet tzv. ekoloških jezera u okolici Zagreba. Organoklorirani pesticidi DDT i derivati, HCH izomeri (α-HCH, β-HCH and δ-HCH), HCB, lindan (γ-HCH), aldrin, dieldrin, endrin, heptaklor, heptaklorepoksid i metoksiklor) određivali su se metodom plinske kromatografije uz elektronapsorpcijski način detekcije i uz postignutu granicu detekcije od 0,01 µg kg-1. Vrijednosti ispitivanih organokloriranih pesticida u svim su uzorcima riba bile mnogo niže od maksimalno dopuštenih koncentracija. Vrijednosti medijana kretale su se od najnižih 0,01 µg kg-1 za dieldrin i metoksiklor do najviših 2,00 µg kg-1 za DDT u uzorcima riba porodice Cyprinidae s lokacije Sava - Zagreb. Utvrđeni ostaci preostalih ispitivanih pesticida potvrđuju kako njihovu uporabu na našim područjima tako i njihovu postojanost i prisutnost u cjelokupnom ekosustavu unatoč činjenici da je većina zabranjena u Hrvatskoj prije gotovo 30 godina, kao i u mnogim dijelovima svijeta

Invention du cercueil en pierre et du corps de saint ("sic") Alpaïs à Cudot-Sainte-Alpaïs (diocèse de Sens), les 13 février et 14 mars 1874. (Signé : C. Boiselle, curé chapelain de Sainte-Alpaïs.)

Appartient à l’ensemble documentaire : Bourgogn1Avec mode text

Recherche d'une vie de sainte Alpaïs (Alpaix, Alpaise, Elpide, Aupaix...) écrite vers l'an 1244. (Signé : Boiselle, curé de Ste-Alpaïs.)

Avec mode text

Anreicherung und Verteilung von chlorierten Kohlenwasserstoffen (CIKW) in Fischen aus Berliner Gewaessern und Moeglichkeiten ihrer Dekontamination. Bestandsaufnahme - Oekologie - Wege zur Loesung

SIGLEAvailable from: Zentralstelle fuer Agrardokumentation und -information (ZADI), Villichgasse 17, D-53177 Bonn / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Optimal imaging protocol for measuring dynamic expiratory collapse of the central airways

AIM: To compare measurements of expiratory collapse obtained using multidetector computed tomography (MDCT) of the central airways on routine axial and multiplanar reformatted (MPR) images. MATERIALS AND METHODS: Fifty volunteers with normal pulmonary function and no smoking history were imaged using a 64 MDCT system (40 mAs, 120 kVp, 0.625 mm collimation) with spirometric monitoring at end-inspiration and during forced expiration. Measurements of the trachea, right main (RMB) and left main bronchus (LMB) were obtained on axial and MPR images. Inspiratory and dynamic-expiratory cross-sectional area (CSA) measurements were used to calculate the mean percentage expiratory collapse (% Collapse). A paired t-test was used to assess within-subject differences and a Bland-Altman plot was used to assess agreement between the methods. RESULTS: Among 24 men and 26 women (mean age +/- standard deviation 50 +/- 15 years), CSA values were significantly greater on axial than MPR images (all p<0.001); however, the mean difference in % Collapse values for axial versus MPR were small: trachea approximate to 1% (55 +/- 19 versus 56 +/- 18, p = 0.338); LMB identical (60 +/- 20 versus 60 +/- 17 p = 0.856); and, RMB 4% (62 +/- 19 versus 66 +/- 19 p<0.001). On average, creation of MPR required 12 minutes of additional time per case (range = 10-15 min). CONCLUSION: Differences in mean % Collapse for axial versus MPR images were small and unlikely to influence clinical management. This finding suggests that MPR may not be indicated for routine assessment of central airway collapse