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141.
Jiménez-Tenorio N Morales-Caselles C Kalman J Salamanca MJ de Canales ML Sarasquete C DelValls TA 《Environment international》2007,33(4):474-480
Sediment quality assessments for regulatory purposes (i.e. dredged material disposal) are characterized by linking chemical and acute ecotoxicological data. The design of chronic bioassays that incorporate more sensible endpoints than acute tests is discussed to address sediment quality for environmental quality assessment and regulatory proposes. The chronic tests use juveniles of commercial species of fish Sparus aurata and Solea senegalensis, to assess sediment toxicity in samples collected along different littoral areas in the North and the South of Spain. The organisms were exposed during 60 days and sublethal endpoints were selected including biomarkers of exposure to metals (metallothioneins - MTs) and to organic contaminants (ethoxyresorufin-O-deethylase activity - EROD activity) and biomarkers of effect (histopathology in different tissues, gill and liver). A Multivariate Analysis Approach was conducted in order to associate these biological responses with sediment metal concentration from the ports and with chemical residues in biological tissues exposed to sediments under laboratory conditions. 相似文献
142.
Integral quantities, wind run, S, and recirculation factor, R, useful for describing air flow, are calculated and combined with CO2 mixing ratios. Meteorological observations were obtained from a RASS sodar and CO2 mixing ratios from a continuous analyzer installed at a rural site in the upper Spanish plateau. The measuring campaign spread
over 3 years and two approaches were followed. The first approach considered integral quantities on a daily basis and two
classifications of air flow, to date scarcely used. The first classification distinguished among stagnation, recirculation,
and ventilation, the second considering synoptic, meso-, and local scales. Moreover, 52.94% of daily values handled in this
paper corresponded to ventilation and 49.70% to synoptic scale. The main goal of this approach is the subsequent link between
the two classifications: the synoptic scale was associated with ventilation, mesoscale with recirculation and local scale
partially with recirculation. CO2 observations were distributed in air flow groups following these classifications and mesoscale processes were satisfactorily
described since noticeable evidence of transport from nearby cities was observed. In the second approach, S and R pairs were used and CO2 mixing ratios were distributed following percent intervals of ventilation, calculated by binning these pairs. The main goal
of the second approach is to consider only three groups of mixing ratios. In the first group, with high ventilation, mixing
ratios were low. With intermediate ventilation, mixing ratios were medium, and with low ventilation mixing ratios were high.
A contrast of 21 ppm between the third and first groups was obtained at the 95th percentile. Finally, the second group provided
a contrast of 3 ppm between north and south directions and also between east and west attributed to transport from nearby
cities. 相似文献
143.
García-Barrera Luisa V. Ortega-Solís Dafne L. Soriano-Giles Gabriela Lopez Nazario Romero-Romero Fernando Reinheimer Eric Varela-Guerrero Victor Ballesteros-Rivas María F. 《Journal of Polymers and the Environment》2022,30(9):3832-3839
Journal of Polymers and the Environment - The objective of this research is to provide a new recycling method for one of the most consumed plastics today, since it is used for the manufacture of a... 相似文献
144.
Caly Luisa F. Rodríguez Diana C. Peñuela Gustavo A. 《Environmental science and pollution research international》2022,29(35):52775-52787
Environmental Science and Pollution Research - Anthropogenic pollution and global climate change have resulted in favorable environmental conditions for increased frequency and duration of... 相似文献
145.
Khannyra Souad Gil Maria Luisa Almoraima Addou Mohammed Mosquera Maria Jesus 《Environmental science and pollution research international》2022,29(42):63126-63126
Environmental Science and Pollution Research - 相似文献