Flora Qarri et al.
Transcription
Flora Qarri et al.
MIDDLE TERM BIOMONITORY OF VLORA_FIER AREA, ALBANIA Qarri F.1, Lazo P.2 1 University “I. Qemali”, Vlora, 2 University of Tirana, The aim of this study is the monitoring of air quality of VloraFier area by using mosses as bioindicators (Hypnym cupressiforme) and the identification of emission sources Samples Alb-17* Alb-18* Alb-19* Alb-20* Alb-21* Alb-22* Alb-23** Alb-58** Alb-59** Alb60** Map of sample positions Monitoring sites Kaninë Dukat Llogora Tërbaç Mavrovë Selenicë Patos Levan Lushnjë Kuçova The samples were collected in dry periods during Sept.Oct. ANALYSIS ICP/AES - 19 elementes (Al, B, Ba, Ca, Cd, Cr, Cu, Fe, Hg, Mg, Mn, Na, Ni, P, Pb, Sr, V dhe Zn); Institute of Chemistry, Faculty of Science, Sts. Cyril and Methodius University, Skopje, Republic of Macedonia. RESULTS AND DISCUSSION • • The results are given as gradient of concentration. The trend of elements distribution: Max 100000 Min Median Mean 10000 mg/kg, DW 1000 100 10 1 0.1 0.01 Cd •The As Li Pb V Cr Ni Cu Zn Ba Sr Mn Na P Fe Al Mg K Ca trend of elements distribution show that most toxic elements appear with very low level: Cd<As<Li<Pb<V<Cr<Ni<Cu<Zn<Sr<Ba<Mn<Na<P<Fe<Al<Mg<K<Ca After Li normalization, Cd and Pb shifted to higher level of conc., indicating anthropogenic pollution; while Ni is mainly lithogenic source. As we have worked at a small area (MIDDLE TERM MONITORY) the range of variation of most of elements is relatively low, compare to xxxxxxxxxxxx results COMPARISON OF RESULTS WITH OTHER PLACES Area Cr Cu Fe Mn Ni Zn Norway 0.10–4.2 2–9.2 770–1370 22–750 0.12–6.6 7.9–173 Vlore-Fier 2.13-8.1 3.4-16 640-2400 22-970 2.2-9.5 2-21 Macedonia 2.33-122 3-83 424-17000 37-1490 0.1-24 14-203 Bulgaria 1.2-55 0.1-64 690-19400 32-986 1-29 23-770 The Study of Contamination Factor (CF) Samples Alb-17 Alb-18 Alb-19 Alb-21 Alb-22 Alb 23 Alb-58 Alb-59 Alb-60 CF Al 1.91 2.15 1.08 2.29 1.13 0.64 0.46 0.59 1.04 As 0.5 0.5 1.2 7.2 1.7 0.7 1.6 1.5 3.1 > 27 Classification C6 Contamination Extremily level polluted Cd 1.08 1.58 1.72 1.58 2.17 2.11 2.56 1.78 0.78 Cu 1.39 1.26 1.36 1.35 1.48 4.62 2.04 1.89 1.61 Fe 1.93 1.93 1.02 2.45 1.21 1.05 0.73 1.14 1.91 K 0.97 0.95 0.93 0.97 1.22 1.4 1.59 1.18 0.52 Ni 2.42 1.94 0.97 3.97 2.29 2.1 1.46 2.45 3.63 Pb 1.41 1.78 1.88 1.73 1.26 1.57 0.99 1.37 1.45 Zn 1.64 1.99 1.99 1.83 1.53 4.55 5.33 5.17 3.48 Mn 0.75 0.68 0.52 0.73 0.92 1.23 0.6 0.62 0.74 8.0-27 3.5-8 2- 3.5 1.0-2 <1 C5 C4 Moderately polluted C3 Slightly polluted C2 Doubtful C1 Polluted No polluted St. Alb-60 – show moderately polluted - level C4 of contamination (Ni and Zn), Kuçova oil ind. Area, Alb-23 ( Patos), - polluted - level C4 of contamination (Zn,Cu). This is an oil industry and reffinery area. Alb-58,Alb-59 (Fieri): polluted - level C4 of contamination (Zn) – close to urban area. St. Alb-21 – (Mavrova), polluted - level C4 of contamination (As, Ni). The origin is not clear. Multivariable Analysis – Cluster Analysis of Correlated Matrix (Similarity level 80%) Dendrogram Centroid Linkage, Correlation Coefficient Distance Similarity 54.45 69.63 84.82 100.00 Al V Cr Fe Sr Ba As Ni Ca Pb Variables Cd P Na Cu Mg Zn Mn Cluster 1: (Al, As, Ba, Cr, Fe, Li, Ni, Sr dhe V) - lithogenic origin determined by Al and Li as typical crustal elements. Cluster 2: (Ca) - carbonative and dolomite nature of the coastal area (VloraFier) Cluster 3: Pb, determined as anthropogenic source of origine, mainly from traffic emission, as well as oil and gas industry emission in Fieri area. Cluster 4: (Cd, Na dhe P). Na and P are probably of their natural origin of these elements as plant’s essential elements. The classification of Cd on the same group is not clear Cluster 5: (Cu, Zn dhe Mg). Cu dhe Zn – refflect dry deposition of PM10/and or PM2.5 as well as traffic emission. Cluster 6: (Mn) - refflect the influence of higher vegetations in this area Cluster Analysis of Correlated Matrix (Stations: Similarity level 80%) Dendrogram Single Linkage, Euclidean Distance Similarity 59.06 72.70 86.35 100.00 1 2 3 4 6 10 Observations 7 8 9 5 Cluster 1: Stations of Kanina and Dukat; The tree-vegetation is characteristic of this area . Hills area with altitude about 400 m. Have the same distance from sea coast. Cluster 2: Station of Llogora, with the altitude about 1000 m. Cluster 3: Stations Terbac and Selenica – the distance from sea coast is larger than other stations. , Terbac area is sorrounded with high hills with small vegetationt, while Selenica (oil industry) area is a lowland area, rich with vascular plants, probably influencing in air purification level. Cluster 4: Only Kucova area, the center of oil and gas industry with the largest=r distance from the seacoast (55-60 km far) compare to other stations. Cluster 5: The stations Patos, Levan and Lushnje – close to urban areas, with similar vegetation. Cluster 6: Only Mavrova station, lowlad area, with very low traffic and poor in vegetation (mainly morlands and grassy plants) CONCLUSION • The study confirms that the moss biomonitoring is a valuable tool for the evaluation of atmospheric input of metals in the environment, also in middle term monitoring. The method is suitable for spatial trends deposition. • The differences on metals concentration in different location of emission sources were expressed clearly on the mosses, which reflect local changes in HM deposition. • Most of elements belong to no polluted level (C2 and C1), except Ni, Zn and As which reflect moderately polluted level, caused mainly from oil industry and traffic emmissions. • Cluster analysis proved to be a useful tool for classification of environmental situation of different areas also in middle-term monitory