There is analyzed the genesis and the evolution of the notion of chemical factors. The scientific study of these factors has been initiated by: A.-L. Lavoisier, Louis Pasteur, J.B. Lamarck, Iu. von Liebig, continuing with V. Shelford, W.P. Taylor, Rubel E., W. Tischler, P. Williams, B. Harborne, M. Barbier, S.A. Ostroumov, M.M. Telitcenko, M.M. Hailov etc. As a result, there have been created two distinct scientific directions, and namely biochemical ecology and environmental chemistry. The ecological chemistry from the Republic of Moldova took its start within the Moldovan State University, at the end of the 1980s, its founders being Professor A.Ia.Siciov and academician Gh. Duca. Currently, the academician Gh. Duca successfully leads the National school of organic chemistry.

Este analizată geneza şi evoluţia cunoaşterii factorilor chimici. Studiul ştiinţifi c al acestor factori l-au iniţiat: A.-L.Lavoisier, Luis Pasteur, J.B. Lamarck, Iu. von Liebig, continuând cu V.Shelford, W.P. Taylor, Rubel E., W. Tischler, P.Williams, B.Harborne, M.Barbier, S.A.Ostroumov, M.M. Telitcenko, M.M. Hailov ş.a. În consecinţă, s-au creat două direcţii ştiinţifice distincte – ecologia biochimică şi chimia ecologică. În Republica Moldova chimia ecologică şi-a luat startul la USM, la sf. anilor 1980, fondatori fiind prof. A.Ia. Sâciov şi acad. Gh. Duca. În prezent, acad. Gh. Duca conduce cu succes şcoala naţională de chimie ecologică.