The initiative follows a high court order to crack down on factories polluting the environment in the state, reports pharmabiz.com.
The state PCB had launched a drive to inspect polluting units following a recent notice to eight pharmaceutical companies in Nalgonda district, Andhra Pradesh, India.
The board is also analyzing effluent samples of other pharmaceutical units in the state including Choutuppal, Chityal, Pochampally, Mellacheruvu, Narketpally, Bhongir and Bibinagar.
According to other sources, it is believed that these are the same old units which have been closed earlier for violating pollution control norms.