Inorganic arsenicals have been used in agriculture as pesticides or defoliants for many years and, in localized areas, oxides of arsenic have contaminated soils as a result of fallout from ore-smelting operations and coal-fired power plants. Use of inorganic arsenicals is no longer permitted in most agricultural operations, and recent air pollution controls have markedly reduced contamination f...

Supergene mineral assemblages rich in Pb, As and P occur on the dumps after historical mining of base-metal deposit Kvasetice (Havlíčkův Brod ore district, Bohemian-Moravian Highlands, Czech Republic). The primary hydrothermal assemblage pyrite > sphalerite arsenopyrite galena >> boulangerite hosted quartz veins is partly different from other similar localities this area, which belong ...

The crystal structures of hydro-thermally synthesized silver(I) aluminium bis-[hydrogen arsenate(V)], AgAl(HAsO4)2, silver(I) gallium bis-[hydrogen arsenate(V)], AgGa(HAsO4)2, silver gallium diarsenate(V), AgGaAs2O7, and sodium gallium diarsenate(V), NaGaAs2O7, were determined from single-crystal X-ray diffraction data collected at room temperature. The first two compounds are representatives o...

In our era of up-to-the-minute reporting and social networking, newly published scientific discoveries—especially those appearing in high-profile journals—are reaching larger scientific audiences and the general public with greater efficiency. However, these online media are also being used more and more to broadcast criticisms of a study’s technical merit or conclusions. This changing landscap...

Abstract Thalliomelane, a new member of the coronadite group (hollandite supergroup), was discovered at Zalas near Kraków in southern Poland (the margin Kraków-Silesia Monocline) relics preglacial supergene mineralization disseminated fault breccia Middle Jurassic sandy limestone. The formed expense sulfide assemblage, which most likely source thallium, related to rejuvenation Early-Paleozoic z...

Cacodylic acid (hydroxydimethylarsine oxide) was more phytotoxic than monsodium methanearsonate (MSMA), sodium arsenate, or sodium arsenite when foliarly-applied. MSMA was much more effective on dicotyledonous than on monocotyledonous species. Sodium arsenite and arsenate had little effect on grasses. A comparative study of absorption, transport, and metabolism in beans (Phaseolus vulgaris L. ‘...