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A newly developed sensor for NO 2 has been investigated from a practical point of view. Various metal oxide semiconductors have been examined and as a result it is found that WO 3 shows the highest potentiality as an NO 2 sensor for air-quality monitoring. Several approaches, such as introducing SiO 2 binder, microprocessing techniques, heat-cleaning techniques and...
A study was made of differences in the accumulation and excretion of diazinon, fenthion and fenitrothion by killifish (Oryzias latipes) between experiments with individual and mixed pesticides. The bioconcentration factor (BCF) of the pesticides in the former reached plateau levels less rapidly than that in the latter. There was little difference in the BCF and excretion rate constants of the pesticides...
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