Environmental arsenic compounds structure

Figure 2 Environmental arsenic compounds referred to in text and tables by structure number. Carbons marked represent epimeric centers where both diastereoisomers have been identified as natural products.

Fendorf S, Eich MJ, Grossl P, Sparks DL (1997) Arsenate and chromate retention mechanisms on goethite. 1. Surface structure. Environ Sci Technol 31 315—320 Francesconi KA, Kuehnelt D (2002) Arsenic compounds in the environment. In Environmental chemistry of arsenic. In Frankenberger WT Jr (ed) Marcel Dekker, New York, Chapter 3, pp 51-94... 

Chromated copper arsenate, made from a mixture of copper, chromium, and arsenic compounds, has been used to protect wood for outdoor applications from decay and insects since the 1930s. Treated wood has a characteristic light green color. Environmental concerns led to restrictions on the use of this pre servative for residential timber in the U.S. and Europe banning in 2004. IVeated wood is still legal for many applications, and a great deal of treated wood remains in structures built before tbe ban. 

---