Unit is using the Ammonia in accordance with Rule 4-1(a), 4-2(a) & (b) the Manufacture, Storage and Import of Hazardous Chemical Rules, 1989. The learned counsel for the respondents-Pollution Control Board would further submit that the Ice Unit of the petitioner was inspected by the officials of the Pollution Control Board on 24.02.2009 and a show cause notice was issued to the Unit vide Proc.No.DEE/TNPCB/CHN/Z-1/PC149/2008, dated 24.02.2009 on various grounds, including the ground that the Unit has not complied with the relevant provisions of Sections 21, 22 & 23 of the Air (P & CP) Act 1981 as amended as 1987, Sections 8 & 9 of the Environment (Protection) Act 1986, Rule 12 of the Environment (Protection) Rules 1986 and Rule 4 of the Manufacture, Storage and Import of Hazardous Chemicals Rules 1989, as amended in 2000. The application filed by the petitioner was returned vide Letter No.DEE/TNPCB/CHN/OS1071/2009-1, dated 04.05.2009 on the grounds that in the application, the place was owned by one Gnana Soundari Ice Factory, but on the contrary, in Sub-Clause 3 it was informed that the land is on lease, however, no sale deed or lease deed was enclosed. Further, in the application it was stated that there is no process emission. On the contrary, it has been stated that 420 kgs of Ammonia is charged into the system at the time of commissioning and that 60 kgs is charged per annum as make up quantity. This indicates that there is release of Ammonia emissions to the environment which has not been accounted for. Further, though there are complaints regarding health problems caused by leakage of Ammonia, no risk analysis report and maximum credible accident analysis report with respect to the persons likely to be affected based on prevailing land use, has not been enclosed. Moreover, the Unit is situated within the Coastal Regulation Zone. Therefore, consent cannot be granted for operating the Unit. Therefore, considering all these facts, the impugned orders were rightly passed by the respondents 1 & 2 for closure of the Unit. Thus, the learned counsel for the Pollution Control Board sought for dismissal of the writ petition.