Evaluation of kidney histopathological alterations in Crucian Carp, Carassius carassius, from a pesticide and PCB-contaminated freshwater ecosystem, using light microscopy and organ index mathematical model

This study aimed to evaluate the potential toxic effects of chronic sublethal pesticides and polychlorinated biphenyl (PCBs) exposure on feral crucian carp, Carassius carassius, using histopathological alterations as an endpoint. Besides, a mathematical model of organ index was used to evaluate the severity of tissue damages. Circulatory disturbances, inflammation, regressive and progressive changes of tubules, glomerulus and interstitial tissue of kidneys were the most frequent damages observed. Organ index calculation revealed moderate occurrence of damage in kidneys of fish compared to the reference site. Findings highlight the effectiveness of organ index as a measuring kidney's damage severity and health status of fish. The present work is the first study that determines the levels and effects of pesticides and PCBs in water and fish kidneys in Seferani Lake in Albania. The results suggest that the observed changes in kidney structure of C. carassius, could possibly indicate a prolonged chemical stress caused by pesticides and PCBs suggesting continuous monitoring of the lake to protect human consumer's health

First survey of atmospheric heavy metal deposition in Kosovo using moss biomonitoring

Bryophytes act as bioindicators and bioaccumulators of metal deposition in the environment. The atmospheric deposition of Cd, Cr, Cu, Fe, Hg, Ni, Mn, Pb, and Zn in Kosovo was investigated by using carpet-forming moss species (Pseudocleropodium purum and Hypnum cupressiforme) as bioindicators. This research is part of the European moss survey coordinated by the ICP Vegetation, an International Cooperative Programme reporting on the effects of air pollution on vegetation to the UNECE Convention on Long-range Transboundary Air Pollution. Sampling was performed during the summer of 2011 at 25 sampling sites homogenously distributed over Kosovo. Unwashed, dried samples were digested by using wet digestion in Teflon tubes. The concentrations of metal elements were determined by atomic absorption spectrometry (AAS) equipped with flame and/or furnace systems. The heavy metal concentration in mosses reflected local emission sources. The data obtained in this study were compared with those of similar studies inneighboring countries and Europe (2010–2014 survey). The geographical distribution maps of the elements over the sampled territory were constructed using geographic information system (GIS) technology. The concentrations of Cr, Ni, Pb, and Zn were higher than the respective median values of Europe, suggesting that the zones with heavy vehicular traffic and industry emission input are important emitters of these elements. Selected zones are highly polluted particularly by Cd, Pb, Hg, and Ni. The statistical analyses revealed that a strong correlation exists between the Pb and Cd content in mosses, and the degree of pollution in the studied sites was assessed

1-[2-(2,4-Dichloro­phenyl)­pent­yl]-1H-1,2,4-triazole

The title compound, C13H15Cl2N3, also known as penconazole, crystallizes as a racemate. The dihedral angle between the benzene and triazole rings is 24.96 (13)°. In the crystal structure, mol­ecules are linked into chains running parallel to the c axis by inter­molecular C—H⋯N hydrogen-bonding inter­actions

2,2-Diphenyl­benzo[c]quinoline-1-ox­yl

In the title compound, C25H18NO, a stable phenanthridinic nitroxide, the ring containing the nitroxide function assumes a twist-boat conformation and the dihedral angle formed by adjacent benzene rings is 21.78 (5)°. The phenyl substituents at position 2 are approximately orthogonal to each other, forming a dihedral angle of 81.04 (4)°. The crystal structure is stabilized by an intra­molecular C—H⋯O hydrogen bond and by C—H⋯π inter­actions

3-Benzyl-3-hy­droxy-2-phenyl-3H-indole 1-oxide

The asymmetric unit of the title compound, C21H17NO2, contains two crystallographically independent mol­ecules of similar geometry. The indole ring systems form dihedral angles of 8.30 (5) and 9.58 (5)° with the attached phenyl rings, and 56.96 (5) and 57.68 (5)° with the aromatic rings of the respective benzyl groups. The mol­ecular conformations are stabilized by intra­molecular C—H⋯O hydrogen bonds. In the crystal structure, centrosymmetrically related pairs of mol­ecules are linked into dimers through pairs of inter­molecular O—H⋯O hydrogen bonds, generating 12-membered rings with R 2 2(12) motifs. The dimers are further linked into a three-dimensional network by C—H⋯O inter­actions

Analysis of organic pollutants in water samples of White Drin, Black Drin and Fierza Reservoir

This study presented data about concentrations of some organic pollutants inAlbanian part of Black Drin (BD), White Drin (WD) and Fierza Reservoir (FR).Thirteen stations were analyzed in this study. Sampling of water was realized inMay 2017. Drin River presents important aquatic area in Albania. For all watersamples were analyzed organochlorine pesticides (OCPs), polychlorinatedbiphenyls (PCBs), benzene, toluene, ethylbenzene and o-, m-, p-xylenes (BTEX)and polyromantic hydrocarbons (PAH). Organochlorined pesticides and PCBswere found in higher level for Fierza Reservoir stations. Their concentrations forBlack and White Drin samples were 5-10 times lower