The source of the gas leak was a styrene plant owned by South Korean electronics giant LG, located at RRV Puram near Gopalapatnam, 15 km from Visakhapatnam. 59 0 obj <>/Filter/FlateDecode/ID[<2EEAFDB1A881012F604473328C9DC95F>]/Index[49 24]/Info 48 0 R/Length 67/Prev 45421/Root 50 0 R/Size 73/Type/XRef/W[1 2 1]>>stream LDo�\t�A� Roadway work zones are hazardous both for motorists who drive through the complex array of signs, barrels, and lane changes and for workers who build, repair, and maintain our Nation’s streets, bridges, and highways. polystyrene is in a solid (glassy) state at room temperature but flows if heated above about 100 °C, its glass transition temperature. As of this date, Scribd will manage your SlideShare account and any content you may have on SlideShare, and Scribd's General Terms of Use and Privacy Policy will apply. ��p��Hxs���\���]��QrӣK�)J~�>9����O(��� ��b�@�J�c�L��)�!R0�9. endstream endobj 10 0 obj<> endobj 11 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 12 0 obj<>stream ;?�Q�0�8�2 JH�Q�Dz�p�B�•ϐ�0 sD����?H��P���=��yY%�t��S+�a��tJ���ubR��넣�3,����j%PƠ飶k*�uM���r�h��w�%]�'C�C��� ����������tM���2���H+��Ow�{�����d�t�[��1AW���3���٧S���[]1I���Fg�GC8c�.�3M�t����x®��|ZO���������ez��ӛY������4��ەHL����~,�C�ۡ{��pl��*����)+�m��]n �trWŶ�eŞ�gŬ����̪��Ӫ]U?-r���C�xp y�|0�����m*]>0���k� 9$3#��'��ي��m�+�zUu�}Q�2�@[m�s���_2�(��g=a=�8�iG�����z�.�FumT��v|��������c. See our User Agreement and Privacy Policy. Polystyrene can be solid or foamed. uCTj��bVn ��! %%EOF ��qFೡYC�Y������Y����`חYlfAm�����Ze�KM,,g�tw7xF������|����E�o������Q���>`�b��W�N���>I�� %PDF-1.5 %���� Styrene is widely used to make plastics and rubber, which are used to manufacture a variety of products, such as insulation, pipes, automobile parts, printing cartridges, food containers, and carpet backing. Acute inhalation exposure of styrene vapour to mice resulted in irritation of the upper respiratory tract at 156 ppm for 3 minutes (664 mg m-3), and behavioural changes at 413 ppm for 4 hours (1757 mg m-3) [3]. endstream endobj 4 0 obj<> endobj 5 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 6 0 obj<>stream Styrene (C₆H₅CH=CH₂) is a colorless liquid that evaporates easily and has a sweet smell. PA Training for Health & Safety (PATHS) Work Zone Safety . $8^ ��D��[ R� $�e0012 )f`$��ϸ�+@� �X CBPST,COCHIN. ����c~�^6^�T�Q�VoHU]~c���=M��;%�J��NP�h)�9��,���` n� 1. 1968]. Hearing loss has been observed in animals exposed to very high concentrations of styrene. 0 hޤ�mo�0ǿ�_2���N"�J]�n�L�0��/��tAiR%FZ�=wv'`��rc���? Learn more. h�b```f``R�lW������9 9�Da0�04l� ��L�@�27Ni ����8��y�E,}$r�^��en� iF �b�Wj>�"@� � h޼X]�۸}�� �I.lE��/�(��,6�,�6F�!�-�6It%9�j}�����Qg�(�$�(gΜ93һ>���.������F�L��/\D~Ȋj���*d�����7�w� g!����3��~�\\�A�6�"`������ǖ�/����f�� ���֙�,a�Z��V�bHf�>,��.c��]���e��E��0Q��(眵��퇜%���dx A�B��(�����SБ�dY�ֹ��q�6�'��0���4�nMsnc��_. h���s�8���+����%���7D۴�t�Ih�MC��^��[�Ɩ �8!�Ñ� �v����vyw��w���% E%�{ h��w6TH/�r *��� ��b_ ��ՍQKW�ՍRǷ�ޠ{�~Y0\&�T&|o��6 �w�` ���� �Φ������y�:a�UG��4B-�l6xIU���h������Te��9��.��|l�n�ldʌ��%������f��bV~(���xo���dm�`�C+X E�+�� ��� Styrene is a colorless, flammable liquid, which has a sweet odor and is highly volatile. It becomes rigid again when cooled . ��y�3�>rq�{����Oe(K���$>},%��1U|A�ȅ�|����b�\�bG�`�Mcw�.��3��C�|���xC\uő�z� It is an inexpensive resin per unit weight. If you wish to opt out, please close your SlideShare account. h�ܛYs�H����(�-i�&�6���J*��(�v������;�s��q%`oR�"�Z=����qq5��q���.�� �- ��.�>.s� ����c"�8�-��� �-��\ϲ�&�A�i8�e��}w���Ώ���N�TJG��T�a����*�a%w�K7�3���c:6]���&FX6�`�mڦIjN7ܑ�e]�v 8EG_�pY�H�+:��(��uh��q2��F�!0>�A�a���{�����›�O�����㈹|s$H�- !�4��,��hT���~^�7�m�刜�����y�~-����7���Q2�q5.ӿpb��^���Q�P�l��5[�sP��3�}�yv�(�Sd 1�`�h4�N��N.���� ��x��IM�����e��!��U�O0�*�^U|�8� �Q�0�~ � a��X�SY�-luL�Ъ�ǰ�;�Ι��3O�6Ԭ�zp0_a��Q���ݸa���˃C��,�(�4�=&t�oP�������1u;�'p>�g�]���R�fbO�ׄ�ʖ�����JJ�\�}6 We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. է�8_�5��b�y� ���G���gk/�B�fn�`���kL�r��x+������f-��E��ڦ��%���a�}�^ޯR��.8�J�]��C�W �;�4�+,ӕ7ϗ[�=��>�ow֊��!�Y����$@�$��q��U4�J�bا��2��yr5��z�����8�#+A�}�ɯ���.S� %PDF-1.5 %���� Basis for revised IDLH: The revised IDLH for styrene is 700 ppm based on acute inhalation toxicity data in humans [AIHA 1959; Stewart et al. If you continue browsing the site, you agree to the use of cookies on this website. JEFF JOSE By, s(�σ��r�͌(�n|�D����� i�w#'\`�u��t-ۀ����g!�5�v��� ��=2У �L"$�0��Ex'lj~��1w9���V ;uup���a�B�c����믋���f���& #��,3�O��ŷ�j�h��5��>w[�Wq�Slk��m:].��bj�`z�����7�)�h�?�|E���X*���>ƭ�]-���q��.�ڥ����JT>T��''�#��@��JH�O�Ҫ 9I&�:#"s���t�y�6�ZU� ��0)��M;E�4'�Օ��Qp��:���t�� ̨=c�eJ�3���>�d X#�"���)� �k G������A��࠳ Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. h�ԗMs�F���}D��ݰI��`���洵٪T%�$�T�}z��D(K��]ec���~���C���o�G�z����*��)$������+ Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. w���F��dx6�����_H*P�.�[�؈�Gm̢�?����&�It�i��\�蜌j-$x97ΌSr��Q�މ�� ����~�c>�R?F�� ���㚫�e�v .1S.� )s&�O�9�E������� �D � �� ��嫍sQ�g��%�A�=��-��$it�ۮ1�����l�٢�ZȪ˺Ρ4O��z�}iLe�ÜPFS�0��:kQQ��;e�a��q�1���#9�����Zo8�ERy��s砸p����=u�\�&�����N�깳������-d�Pn. ;��K;peGzJ�'��r� ����c9J�K�,�r�����߻������n�$ ����{�UbC.��9`Q�|��+K6}LM� Roll No:10 49 0 obj <> endobj endstream endobj startxref endstream endobj 13 0 obj<> endobj 14 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 15 0 obj<>stream Breathing high levels of styrene may cause changes in color vision, tiredness, feeling drunk, slowed reaction time, concentration problems, or balance problems. ���aQ��2Sà�b���4Fۧp ��,|�,� Z�X���˧�EHz�����.�o�:�̭�_Y��.i���i���������{8�E�Gi;�O�LÍmmsJ����5��V��+e� [�"�{Ϭ 13. Clipping is a handy way to collect important slides you want to go back to later. See our Privacy Policy and User Agreement for details. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. h�bbd``b`Z $�C�`� Now customize the name of a clipboard to store your clips. endstream endobj 7 0 obj<> endobj 8 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 9 0 obj<>stream A gas leak, reminiscent of the 1984 Bhopal tragedy, has claimed at least 11 lives and affected thousands of residents in five villages in Visakhapatnam in Andhra Pradesh. 1 0 obj<> endobj 2 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 3 0 obj<>stream endstream endobj 50 0 obj <> endobj 51 0 obj <> endobj 52 0 obj <>stream 2)Dehydrogenation Styrene is produced from the ethylbenzene by a process of dehydrogenation 3)Styrene purification The dehydrogenation reaction produces 'crude styrene' which consists of approximately 31.0% styrene, 61% ethylbenzene and about 2% of aromatic hydrocarbon such as benzene and toluene with some tarry matter. Scribd will begin operating the SlideShare business on December 1, 2020 ;gS����o��Y�s�xT�3g/���{gQ݊����ߕ�2��=>l�o�~6B���k��k n�Z�Yp{0�J8� �� ����[xp[��݃�a��l�^vf9�H ���9h9� b�+�u. Bureau of Workers’ Compensation . 1sem Msc.Biopolymer science poly styrene is a synthetic aromatic polymer made from the monomer styrene. 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