engleski

Study of lead pollution in Croatia by using moss biomonitoring and ICP-AES

Moss biomonitoring technique was used for the first time in Croatia for studying the air pollution in 2006 in the framework of International Cooperative Programme on Effects of Air Pollution on Natural Vegetation and Crops under the auspices of the United Nations Economic Commission for Europe (UNECE-ICP Vegetation) [1, 2]. This survey was repeated in 2010 when moss samples from different species (Hypnum cupressiforme, Pleurozium schreberi, Homalothecium sericeum, Brachythecium rutabulum) were collected during the summer and autumn from 121 locations evenly distributed over the territory of Croatia. Moss samples were digested in microwave digestion system and then analysed by using atomic emission spectrometry with inductively coupled plasma (ICP-AES). Data obtained from these two surveys were compared, and additional comparison was done with data obtained from similar studies in neighbouring countries and Norway as a clean area. The lead content ranges between 1.11 mg kg-1 and 36.64 mg kg-1 with the median value of 3.21 mg kg-1. Compared to the study performed in 2006, highest content of lead decreased for 2.25 times [1, 2]. High levels of lead were found in moss samples collected near industrial areas, north-west coast and Podravina region as a result of anthropogenic pollution but also in the region of south-west coast of Adriatic Sea as a result of geological origin.

lead pollution; Croatia; moss biomonitoring; ICP-AES

nije evidentirano