Ecological assessment of soils near the cement factory Caspian Cement on the chalk deposits Shetpe South

Abstract

The article presents the results of the assessment of the state of soils in 2014-2018, in the area of
the «Caspian Cement» plant at the Shetpe Yuzhnoye chalk Deposit. In General, the monitoring period,
more than 80 soil samples were taken from depths of 0-20 cm. Heavy metals in soil by atomic absorption spectrometry with plasma atomization using AAS MGA-915 were compared with the available MPC
norms. At PP-2, the presence of cadmium is 2.02 MPC and 2.05 MPC, in 2017 and 2018, respectively.
Arsenic MPC exceeded 1.3-2.7 MPC in 2016, 2017 and 2018. The maximum concentration factor of
heavy metals was set for cadmium and lead KK (Cd) = 4.2, KK (Pb) = 4.02 at PP-2 (road to quarry),
while at PP-1 (on site) the KK (Cd) = 3.5 was lower, but for chromium KK (Cr) = 3.2. Soil pollution is
insignificant, excessive concentrations of studied metals not more than 3 MPC, however, the concentrations of QC (Cd, Pb, Cr) and the technogenic coefficient CT (Ni) of Nickel on PP-1 (4.0) and PP-2 (3,4)
is high, the organization of continuous ecological monitoring of soils is necessary.
Key words: сhalk deposit, soils, heavy metals, environmental assessment.