Sensors, Free Full-Text
5 (498) In stock
The aim of the study was to evaluate the use of leeches of the genus Erpobdella as a means of assessing polychlorinated biphenyl contamination of watercourses. The River Skalice, heavily contaminated with PCBs, was selected as a model. The source of contamination was a road gravel processing factory in Rožmitál pod Třemšínem from which an estimated 1 metric ton of PCBs leaked in 1986. Levels of PCB were measured in leeches collected between 1992 to 2003 from 11 sites covering about 50 km of the river (the first sampling site upstream to the source of contamination and 10 sites downstream). The PCB indicator congeners IUPA no. 28, 52, 101, 118, 138, 153, and 180 were measured. Levels were highest at the four sampling sites nearest the source of pollution. The highest values of PCB congeners were found in 1992. PCB content decreased from 1992 to 2003 and with distance from the source. The study indicated that leeches of the genus Erpobdella are a suitable bioindicator of contamination in the surface layer of river sediments.
Sensors, Free Full-Text, convert 36.5 c to f
Sensors, Free Full-Text, values mm2 laser
Machine Learning Energy Management Outlet
Sensors, Free Full-Text, red engine spoofer
Sensors, Free Full-Text
Sensors, Free Full-Text, win draw win today
Sensors An Open Access Journal from MDPI
Sensors, Free Full-Text
Sensors, Free Full-Text, convert 36.5 c to fahrenheit
Ellie AI Wifi Baby Monitor Pro, Smart Baby Monitor With APP
PDF) Sensors, Free Full-Text
Sensors, Free Full-Text, poloution wireless
Sensors, Free Full-Text
Remote Sensing, Free Full-Text, code legend piece update 0.5
- Nightcrawler: The mysterious Catholic superhero with a demonic
- Bobber with 200 White Wall Tires - L&L Choppers
- Portable Fishing Stool Chair Seat Backpack Camping Hiking Insulated Cooler Bag - China Folding Camping Chair with Cooler and Cooler Bag 600d price
- Minn Kota 1854082 MEGA Live TargetLock and MEGA 360 Ultrex
- How to Clean and Pick Crab plus Vietnamese Crab Recipes - Viet
- Stand Up Paddle Board Fishing – Tackle Tactics