SOIL QUALITY MONITORING FOR HYDROSEEDING NEEDS ON THE SECTION OF THE E-75 HIGHWAY, CORRIDOR 10

The paper presents the results of testing the chemical and physical soil properties for the hydroseeding needs on the section of the E-75 highway, Corridor 10, Gornje polje-Caričina dolina. The tests were performed in the laboratory of the Department of Agricultural and Food Studies in Prokuplje, on 12 average soil samples in 2020 and on 13 average soil samples in 2021. There were analyzed the chemical properties: pH values in H2O and in 1M KCl, humus by Kotzmann method, total nitrogen calculated from humus, readily available potassium and phosphorus by AL method, and CaCO3 content was determined volumetric, by Schäibler calcimeter. Physical properties were analyzed: water content in the form of mass fraction in soil (SRPS ISO 11465:2002) and mechanical composition of soil by pipette method with preparation of samples with sodium pyrophosphate and classification of texture classes according to ISSS, Baize (1993). The obtained results show that the examined soils are weakly acidic to moderately alkaline reaction in H2O and moderately acidic to alkaline reaction in 1M KCl, very low content of humus and total nitrogen and weakly carbonate on all analyzed samples. The soils are low to medium supplied with easily accessible potassium and very low provided with easily accessible phosphorus. The water content in the form of mass fraction in the soil is used to translate the results of air-dry samples into the result expressed on the mass of dry soil. Heavy clay to sandy loam dominates by texture classes in the analyzed soils

Exposure of Croatian Population to Radiopharmaceuticals

Cilj je ovoga preglednog rada prikazati aktualno stanje opterećenosti stanovništva Republike Hrvatske ozračivanjem zbog izlaganja otvorenim izvorima ionizirajućeg zračenja u medicinske svrhe. U nedostatku relevantnih statističkih pokazatelja nije moguće validirano prikazati efektivnu dozu po stanovniku RH zbog medicinskog izlaganja radionuklidima čiji je unos u ljudsko tijelo defi niran jednokratnim injektiranjem često i vrlo velikih aktivnosti, izvršena je jednostavna procjena kako bi se upozorilo na potrebu ozbiljnijeg istraživanja i utvrđivanja referentnih nivoa izloženosti za defi nirane vrste dijagnostičkih pretraga. Uz vrlo slobodnu pretpostavku da se u RH godišnje obavi do 35.000 dijagnostičkih pregleda uporabom radionuklida procijenjena efektivna doza po stanovniku RH zbog izlaganja dijagnostičkim kratkoživućim radionuklidima velike početne aktivnosti iznosi od 6,8 do 7,9 μSv po stanovniku.The aim of this paper is to call attention to the exposure of Croatian population to open sources of ionising radiation used in medical diagnostics, radiopharmaceuticals in particular, whose initial activity is very high. Without proper exposure monitoring, it is not possible to establish the effective dose per capita, but we have estimated it to be between 6.8 μSv and 7.0 μSv for this type of internal exposure, based on a very loose assumption that about 35,000 diagnostic procedures with radiopharmaceuticals are performed in Croatia every year. This calls for further research that would eventually lead to limiting the doses received through exposure to radiopharmaceuticals

Exposure of Croatian Population to Radiopharmaceuticals

Cilj je ovoga preglednog rada prikazati aktualno stanje opterećenosti stanovništva Republike Hrvatske ozračivanjem zbog izlaganja otvorenim izvorima ionizirajućeg zračenja u medicinske svrhe. U nedostatku relevantnih statističkih pokazatelja nije moguće validirano prikazati efektivnu dozu po stanovniku RH zbog medicinskog izlaganja radionuklidima čiji je unos u ljudsko tijelo defi niran jednokratnim injektiranjem često i vrlo velikih aktivnosti, izvršena je jednostavna procjena kako bi se upozorilo na potrebu ozbiljnijeg istraživanja i utvrđivanja referentnih nivoa izloženosti za defi nirane vrste dijagnostičkih pretraga. Uz vrlo slobodnu pretpostavku da se u RH godišnje obavi do 35.000 dijagnostičkih pregleda uporabom radionuklida procijenjena efektivna doza po stanovniku RH zbog izlaganja dijagnostičkim kratkoživućim radionuklidima velike početne aktivnosti iznosi od 6,8 do 7,9 μSv po stanovniku.The aim of this paper is to call attention to the exposure of Croatian population to open sources of ionising radiation used in medical diagnostics, radiopharmaceuticals in particular, whose initial activity is very high. Without proper exposure monitoring, it is not possible to establish the effective dose per capita, but we have estimated it to be between 6.8 μSv and 7.0 μSv for this type of internal exposure, based on a very loose assumption that about 35,000 diagnostic procedures with radiopharmaceuticals are performed in Croatia every year. This calls for further research that would eventually lead to limiting the doses received through exposure to radiopharmaceuticals