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Zintegrowany
Monitoring Środowiska Przyrodniczego Funkcjonowanie
i monitoring geoekosystemów w warunkach narastającej antropopresji BIBLIOTEKA
MONITORINGU ŚRODOWISKA, 2004, Toruń ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
ZAWARTOŚĆ METALI CIĘŻKICH W
GLEBACH I ROŚLINACH PRZY DRODZE
KRAJOWEJ NR 7 OLSZTYNEK – PŁOŃSK CONCENTRATION
OF HEAVY METALS IN SOIL AND
PLANTS ALONG THE STATE ROAD No 7 OLSZTYNEK – PŁOŃSK Zarys treści: W artykule przedstawiono stopień zanieczyszczenia
gleb i roślinności trawiastej występującej przy drodze krajowej nr 7 wzdłuż
120 kilometrowego odcinka między Olsztynkiem a Płońskiem. W 11 punktach
określono koncentrację arsenu, cynku, kadmu, miedzi, ołowiu i rtęci. We
wszystkich badanych punktach nie stwierdzono przekroczenia dopuszczalnych
zawartości metali ciężkich określonych normami. SUMMARY
The
paper presents the study on the intensity of soil and grass plant pollution along
the state road No 7. Soil and plants were sampled at 11 locations along the
120-km long section of the state road E-7 from Olsztynek to Płońsk. The
sampling points were established on the meadows and fields 20 m away from the
edge of road. The soil was sampled from arable-humic horizon at 0-25 cm. Plants were sampled at the same
locations. From among 11 sampling points, the highest concentration of arsenic,
cadmium, copper and lead in plants were deter-mined near the village Królikowo,
whereas zinc, cadmium copper and mercury reached the highest levels in plants
sampled near the village Zamoście. Relatively high concentrations of zinc, copper,
lead and mercury were detected in the soil samples collected near the towns: Olsztynek
(Królikowo), Mława and Płońsk. The content of heavy metals in soil was correlated
with physical and chemical properties of the soil. High concentration of
humus, high sorptive complex and high pH reduced the accumulation of heavy metals
in grass plants. However, the physical and chemical properties of soil showed
no evident effect on the content of mercury in soil and grass. Permissible
levels of heavy metals were not exceeded at any of the sampling points, and
their amounts determined in the study remained at natural levels. |
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