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Pluies acides, production de nitrate dans les sols forestiers et annees de secheresse estivale: cofacteurs de risque de deperissement des forets. Reflexions sur la synergie.
1989
Bardy J.A.
Combined releases of oil and gas under pressure; the influence of live oil and natural gas on initial oil droplet formation
2019
Brandvik, Per Johan | Storey, Chris | Davies, Emlyn John | Johansen, Øistein
Both oil droplets and gas bubbles have simultaneously been quantified in laboratory experiments that simulate deep-water subsea releases of both live oil (saturated with gas) and additional natural gas under high pressure. These data have been used to calculate particle size distributions (50–5000 μm) for both oil and gas. The experiments showed no significant difference in oil droplet sizes versus pressure (from 5 m to 1750 m) for experiments with live oil. For combined releases of live oil and natural gas, oil droplet sizes showed a clear reduction as a function of increased gas void fraction (increased release velocity) and a weak reduction with increased depth (increased gas density/momentum). Oil droplets were reduced by a factor of 3 to 4 during simulated subsea dispersant injection (SSDI) and no significant effect of pressure was observed. This indicates that SSDI effectiveness is not dependent on water depth or pressure.
Mostrar más [+] Menos [-]Acid rains, nitrification in forest sols and summer drought years: cofactors of forest decline. Thinking about synergy [bibliography of the article published in the number 124]
1990
Bardy, J.A. (Association pour la Prevention de la Pollution Atmospherique, Bordeaux (France). Comite Bordeaux Aquitaine, Laboratoire Municipal)
Bioremediation of waste under ocean acidification: Reviewing the role of Mytilus edulis
2016
Broszeit, Stefanie | Hattam, Caroline | Beaumont, Nicola
Waste bioremediation is a key regulating ecosystem service, removing wastes from ecosystems through storage, burial and recycling. The bivalve Mytilus edulis is an important contributor to this service, and is used in managing eutrophic waters. Studies show that they are affected by changes in pH due to ocean acidification, reducing their growth. This is forecasted to lead to reductions in M. edulis biomass of up to 50% by 2100. Growth reduction will negatively affect the filtering capacity of each individual, potentially leading to a decrease in bioremediation of waste. This paper critically reviews the current state of knowledge of bioremediation of waste carried out by M. edulis, and the current knowledge of the resultant effect of ocean acidification on this key service. We show that the effects of ocean acidification on waste bioremediation could be a major issue and pave the way for empirical studies of the topic.
Mostrar más [+] Menos [-]Hydrocarbon infiltration and biodegradation in a landfarming experiment
1989
Oudot, J. | Ambles, A. | Bourgeois, S. | Gatellier, C. | Sebyera, N. (Lab. Cryptogamie, Museum National d'Histoire Naturelle, 75005 Paris (France))
Changes in foliar elements in red spruce seedlings after exposure to sulfuric and nitric acid mist
1989
Jacobson, J.S. (Boyce Thompson Inst. for Plant Research, Ithaca, NY (USA)) | Lassoie, J.P. | Osmeloski, J. | Yamada, K.
