Heat stress disrupts the association between corals and dinoflagellates leading to a decrease in the concentration of symbionts within coral tissue16,17.
A decrease in the concentration of surface oxygen species was correlated with iron reduction.
In wastewater samples, a decrease in the concentration of the analysed compounds through the different treatments was observed.
Similarly, samples that are to be assayed for trace levels of metallic pollutants are pretreated in order to prevent a decrease in the concentration of the pollutant that is caused by adsorption on the walls of the sample vessel.
The promoting effect is ascribed to the decrease in the concentration of specific oxidation sites of the lanthana surface.
In both cases, the photocatalytic inactivation has been successfully achieved, reaching a 6-log decrease in the concentration of bacteria.
This decrease in the concentration of heavier gases with height is largest during periods of low Sun activity, when temperatures within the heterosphere are relatively low.
The reduction in toxicity was directly correlated to a decrease in the concentration of 2,4-DCP in the treated solutions, as measured by high-performance liquid chromatography.
After treatment with inhaled beclomethasone dipropionate in asthmatic subjects with EIB, there was a significant decrease in the concentration of NO derivatives in induced sputum.
The result was a significant decrease in the concentration of airborne enzyme dust in the working environment and virtually eliminated the incidence of respiratory allergy.
However, the presence of agglomerates caused by electrostatic attractions is dominant, thus the decrease in the concentration of small particles in the free board suppresses particle elutriation.
