Having a better understanding of air pollutants in railway systems is crucial to ensure clean public transport. This study measured, for the first time Brazil, nanoparticles (NPs) and black carbon (BC) on two ground-level platforms inside trains Metropolitan Area Porto Alegre (MAPA). An intense sampling campaign during thirteen consecutive months was carried out chemical composition NPs examine...

Effects of Artemia urmiana enriched with ICES30/4 as a commercial emulsion of highly unsaturated fatty acid (HUFA) on growth, survival, salinity tolerance and fatty acid composition of the Persian sturgeon larvae were evaluated. Artemia enriched for two different time periods (12 and 24 hours) and non-enriched artemia were fed to A. persicus larvae (average initial wet weight 46.80± 2.03...

Cd and Pb in farmland topsoil are controlled by many factors. To identify the source of potential toxic metals around Mianyuan River, chemical analysis multivariate statistical performed this study. The results indicate following: (1) concentration soil exceed background value Chinese elements. (2) is significantly enriched whole region locally enriched, both them more or less influenced human ...

OBJECTIVE To test the hypothesis whether enriched air nitrox (EAN) breathing during simulated diving reduces decompression stress when compared to compressed air breathing as assessed by intravascular bubble formation after decompression. METHODS Human volunteers underwent a first simulated dive breathing compressed air to include subjects prone to post-decompression venous gas bubbling. Twel...

Effect of feeding on linseed oil (LO)-enriched Artemia was investigated on growth, survival and stress resistance of tiger barb (Puntius tetrazona) larvae. Larvae were fed by LO-enriched (2.5, 5 and 7.5 %) as well as non-enriched Artemia nauplii for 14 d, followed by 14 d feeding on non-enriched Artemia. Fish fed on enriched nauplii showed significant increase in growth performance at both 14th...

iron deficiency or lime induced chlorosis is a common problem in calcareous soils. application of mineral iron fertilizer in these soils is not usually fully effective in curing iron deficiency as compared to organic chelates. cow manure and iron refuse (oxides), a by-product of iron melting factories were mixed in different properties of: 0, 5, 10, and 20 % v/v to make mixtures which of after ...