Abstract
Recent findings in the field of bioremediation, phytoremediation and rhizoremediation were reviewed with emphasis on the introduction of new developing technologies for the remediation of contaminated sites by persistent organohalogen compounds and heavy metals. Bioremediation has been actively studied and entered a new study phase. The number of reports on the monitoring or manegement techniques for the microbial population changes or enzyme activity levels during bioremediation on site were increasing. The phytoremediation and rhizoremediation technologies are being actively developed, and attract much attention since their control is easier than that of bioremediation. Many transgenic plants or bacteria expressing enzymes for biodegradation of pollutants have been created.
