This paper displays geoenvironmental aspects of supply and distribution of chemical elements in urban environments related to activities of the electrical engineering enterprises. The paper is based upon the data obtained during the course of studies conducted in Saransk, Republic of Mordovia, Russia. In the methodical aspect, this is a favorable object representing an industrial urban area. Its ecology is dominated by the electrical engineering plants.

Electromagnetic Methods in Applied Geophysics, Volume I, Theory presented the mathematical and physical foundations common to all EM methods. The purpose of Volume I was to help facilitate the understanding of the theory involved and to provide a limited amount of interpretational aids. Volume H, Applications is devoted to a method-by-method treatment of the principal EM techniques in common use.

Electromagnetic wave resistivity methods in Measurement-While-Drilling and Logging-While-Drilling applications, or simply MWD/LWD, are now approaching their fourth decade of practice. Th ey are instrumental in anisotropy determination, dip angle analysis, bed boundary detection, fl uid identifi cation, and so on, and are important to economic analysis, stimulation planning, geosteering, unconventional resources and numerous exploration challenges.

Recent advances in horizontal drilling and hydraulic fracture stimulation technology have opened up vast new oil and natural gas sources in shale formations. Shale gas production in the United States was 5 trillion cubic feet (141 billion m3) in 2010, representing 23% of the total U.S. dry-gas production (U.S. Energy Information Administration, 2012). Shale gas production has also been established in Canada, and initial exploration drilling has begun outside North America, most notably in Poland, Argentina, India, Australia, and China.