Waa maxay midabka guddiga PCB, sida magacaba ka muuqata, marka la helayo guddiga PCB, ugu dareenka badan si loo arko midabka saliidda ee sabuuradda, taas oo ah, waxaan guud ahaan tixraacnaa midabka guddiga PCB, midabada caadiga ah. waa cagaar, buluug, casaan iyo madow iyo wixii la mid ah.Xiaobian kuwan soo socda waxay wadaagaan fahamkooda midabyo kala duwan.