Bio-concentration factors of reactive X-3B red dye and its distribution in crop tissues Bio-concentration factors of reactive X-3B red dye and its distribution in crop tissues RESEARCH PROGRESS ON RESPONSE OF PLANT ROOT EXUDATES TO POLLUTION STRESS Variation of organic pollution in the last twenty years in the Qinzhou bay and its potential ecological impacts Impacts of different concentrations of main pollutants from the synthetic leather industry on the physiology and ecology of Pinus taiwanensis Contamination characteristics in surface water and coastal groundwater of Hunhe River