Deprecated (16384): The ArrayAccess methods will be removed in 4.0.0.Use getParam(), getData() and getQuery() instead. - /home/brlfuser/public_html/src/Controller/ArtileDetailController.php, line: 150
 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php. [CORE/src/Core/functions.php, line 311]
Code Context


        trigger_error($message, E_USER_DEPRECATED);

    }
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 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php.'
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deprecationWarning - CORE/src/Core/functions.php, line 311
Cake\Http\ServerRequest::offsetGet() - CORE/src/Http/ServerRequest.php, line 2421
App\Controller\ArtileDetailController::index() - APP/Controller/ArtileDetailController.php, line 150
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Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
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Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98

Deprecated (16384): The ArrayAccess methods will be removed in 4.0.0.Use getParam(), getData() and getQuery() instead. - /home/brlfuser/public_html/src/Controller/ArtileDetailController.php, line: 151
 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php. [CORE/src/Core/functions.php, line 311]
Code Context


        trigger_error($message, E_USER_DEPRECATED);

    }
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 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php.'
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deprecationWarning - CORE/src/Core/functions.php, line 311
Cake\Http\ServerRequest::offsetGet() - CORE/src/Http/ServerRequest.php, line 2421
App\Controller\ArtileDetailController::index() - APP/Controller/ArtileDetailController.php, line 151
Cake\Controller\Controller::invokeAction() - CORE/src/Controller/Controller.php, line 610
Cake\Http\ActionDispatcher::_invoke() - CORE/src/Http/ActionDispatcher.php, line 120
Cake\Http\ActionDispatcher::dispatch() - CORE/src/Http/ActionDispatcher.php, line 94
Cake\Http\BaseApplication::__invoke() - CORE/src/Http/BaseApplication.php, line 235
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\RoutingMiddleware::__invoke() - CORE/src/Routing/Middleware/RoutingMiddleware.php, line 162
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\AssetMiddleware::__invoke() - CORE/src/Routing/Middleware/AssetMiddleware.php, line 97
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Error\Middleware\ErrorHandlerMiddleware::__invoke() - CORE/src/Error/Middleware/ErrorHandlerMiddleware.php, line 96
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98

Warning (512): Unable to emit headers. Headers sent in file=/home/brlfuser/public_html/vendor/cakephp/cakephp/src/Error/Debugger.php line=853 [CORE/src/Http/ResponseEmitter.php, line 48]
Code Context
            if (Configure::read('debug')) {

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        LATEST NEWS UPDATES | Blame crop burning for fog: IIT study -Mallica Joshi    </title>
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-The Indian Express

A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.

Varanasi: Burning agricultural residue doesn&rsquo;t just bring down air quality, but also..."/>
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-The Indian Express

A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.

Varanasi: Burning agricultural residue doesn&rsquo;t just bring down air quality, but also..." />
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                            <div align="justify">-The Indian Express<br /><br /><em>A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.<br /><br />Varanasi: </em>Burning agricultural residue doesn&rsquo;t just bring down air quality, but also leads to longer spells of dense fog, scientists at the Indian Institute of Technology, Kanpur have concluded.<br /><br />While the concentration of oxidised organic carbon that is produced after burning biomass &mdash; crop stubble, forest residue and vegetation &mdash; is only 9 per cent on non-fog days, it rises to 35 per cent on days that see fog, says a study conducted by scientists at IIT.<br /><br />Delhi and major cities in Uttar Pradesh have been reeling under a prolonged spell of fog for the past two weeks. This is also the first time in six years that fog has descended in the capital so early on in December.<br /><br />The study &mdash; titled &lsquo;Combined Effects of Organic Aerosol Loading and Fog Processing on Organic Aerosols Oxidation, Composition, and Evolution&rsquo; &mdash; was published in the peer-reviewed journal, Science of the Total Environment, in August. The study was conducted at Kanpur &mdash; one of the most polluted cities in India.<br /><br />The presence of these particles in the air also poses a long-term problem. &ldquo;If they remain in the air for a longer time, they get oxygenated and become more hygroscopic, leading to more affinity towards water and hence the formation of fog,&rdquo; said S N Tripathi, co-author of the study. Fog is formed when small water droplets become suspended in the air.<br /><br />The presence of particulate matter gives water droplets a medium to become suspended and aids the formation of fog.<br /><br />PhD students Abhishek Chakraborty and Tarun Gupta have co-authored the study. Tripathi was speaking at a conference &mdash; particulate matter trends and increasing respiratory ailments &mdash; in Varanasi on Monday.<br /><br />According to several source apportionment studies in Delhi, biomass burning is one of the leading causes of pollution in the Indo-Gangetic Plains. Particulate matter has the tendency and capability to travel over long distances. Scientists at IIT-Kanpur and the National Physical Laboratory have found in separate studies that they can travel to Delhi, Kanpur and Varanasi from as far as Afghanistan, Pakistan, Punjab and Haryana.<br /><br />Oxidised organic carbon compounds that are formed due to biomass burning also lead to longer spells of fog, Tripathi said. &ldquo;Once fog is formed, these particles change and attract more water droplets and lead to more fog. This becomes a vicious cycle where one instance of dense fog leads to a second instance of denser fog,&rdquo; he said.<br /><br />According to experts at the conference, air pollution cannot be Delhi&rsquo;s problem alone and cannot be solved by taking action only in the capital. &ldquo;We need to experiment and see what kind of impact is seen on fog if biomass burning is strictly stopped for a year. Our study says the impact will be immense,&rdquo; Tripathi said.<br /><br />A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year. Data from the Central Pollution Control Board has been analysed in the report.</div>                                                           
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    <br><a href="http://indianexpress.com/article/india/delhi-pollution-smog-crop-burning-for-fog-iit-4424138/" class="re" target="_blank">The Indian Express, 13 December, 2016, http://indianexpress.com/article/india/delhi-pollution-smog-crop-burning-for-fog-iit-4424138/</a><div class="clear"></div>
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A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.

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A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.

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    <h1 class="cat-box-title">Blame crop burning for fog: IIT study -Mallica Joshi</h1>
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                            <div align="justify">-The Indian Express<br /><br /><em>A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.<br /><br />Varanasi: </em>Burning agricultural residue doesn&rsquo;t just bring down air quality, but also leads to longer spells of dense fog, scientists at the Indian Institute of Technology, Kanpur have concluded.<br /><br />While the concentration of oxidised organic carbon that is produced after burning biomass &mdash; crop stubble, forest residue and vegetation &mdash; is only 9 per cent on non-fog days, it rises to 35 per cent on days that see fog, says a study conducted by scientists at IIT.<br /><br />Delhi and major cities in Uttar Pradesh have been reeling under a prolonged spell of fog for the past two weeks. This is also the first time in six years that fog has descended in the capital so early on in December.<br /><br />The study &mdash; titled &lsquo;Combined Effects of Organic Aerosol Loading and Fog Processing on Organic Aerosols Oxidation, Composition, and Evolution&rsquo; &mdash; was published in the peer-reviewed journal, Science of the Total Environment, in August. The study was conducted at Kanpur &mdash; one of the most polluted cities in India.<br /><br />The presence of these particles in the air also poses a long-term problem. &ldquo;If they remain in the air for a longer time, they get oxygenated and become more hygroscopic, leading to more affinity towards water and hence the formation of fog,&rdquo; said S N Tripathi, co-author of the study. Fog is formed when small water droplets become suspended in the air.<br /><br />The presence of particulate matter gives water droplets a medium to become suspended and aids the formation of fog.<br /><br />PhD students Abhishek Chakraborty and Tarun Gupta have co-authored the study. Tripathi was speaking at a conference &mdash; particulate matter trends and increasing respiratory ailments &mdash; in Varanasi on Monday.<br /><br />According to several source apportionment studies in Delhi, biomass burning is one of the leading causes of pollution in the Indo-Gangetic Plains. Particulate matter has the tendency and capability to travel over long distances. Scientists at IIT-Kanpur and the National Physical Laboratory have found in separate studies that they can travel to Delhi, Kanpur and Varanasi from as far as Afghanistan, Pakistan, Punjab and Haryana.<br /><br />Oxidised organic carbon compounds that are formed due to biomass burning also lead to longer spells of fog, Tripathi said. &ldquo;Once fog is formed, these particles change and attract more water droplets and lead to more fog. This becomes a vicious cycle where one instance of dense fog leads to a second instance of denser fog,&rdquo; he said.<br /><br />According to experts at the conference, air pollution cannot be Delhi&rsquo;s problem alone and cannot be solved by taking action only in the capital. &ldquo;We need to experiment and see what kind of impact is seen on fog if biomass burning is strictly stopped for a year. Our study says the impact will be immense,&rdquo; Tripathi said.<br /><br />A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year. Data from the Central Pollution Control Board has been analysed in the report.</div>                                                           
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    <br><a href="http://indianexpress.com/article/india/delhi-pollution-smog-crop-burning-for-fog-iit-4424138/" class="re" target="_blank">The Indian Express, 13 December, 2016, http://indianexpress.com/article/india/delhi-pollution-smog-crop-burning-for-fog-iit-4424138/</a><div class="clear"></div>
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A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.

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-The Indian Express

A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.

Varanasi: Burning agricultural residue doesn&rsquo;t just bring down air quality, but also..." />
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    <h1 class="cat-box-title">Blame crop burning for fog: IIT study -Mallica Joshi</h1>
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		 Published on</span><span class="text-date"> Dec 13, 2016</span>
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                            <div align="justify">-The Indian Express<br /><br /><em>A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year.<br /><br />Varanasi: </em>Burning agricultural residue doesn&rsquo;t just bring down air quality, but also leads to longer spells of dense fog, scientists at the Indian Institute of Technology, Kanpur have concluded.<br /><br />While the concentration of oxidised organic carbon that is produced after burning biomass &mdash; crop stubble, forest residue and vegetation &mdash; is only 9 per cent on non-fog days, it rises to 35 per cent on days that see fog, says a study conducted by scientists at IIT.<br /><br />Delhi and major cities in Uttar Pradesh have been reeling under a prolonged spell of fog for the past two weeks. This is also the first time in six years that fog has descended in the capital so early on in December.<br /><br />The study &mdash; titled &lsquo;Combined Effects of Organic Aerosol Loading and Fog Processing on Organic Aerosols Oxidation, Composition, and Evolution&rsquo; &mdash; was published in the peer-reviewed journal, Science of the Total Environment, in August. The study was conducted at Kanpur &mdash; one of the most polluted cities in India.<br /><br />The presence of these particles in the air also poses a long-term problem. &ldquo;If they remain in the air for a longer time, they get oxygenated and become more hygroscopic, leading to more affinity towards water and hence the formation of fog,&rdquo; said S N Tripathi, co-author of the study. Fog is formed when small water droplets become suspended in the air.<br /><br />The presence of particulate matter gives water droplets a medium to become suspended and aids the formation of fog.<br /><br />PhD students Abhishek Chakraborty and Tarun Gupta have co-authored the study. Tripathi was speaking at a conference &mdash; particulate matter trends and increasing respiratory ailments &mdash; in Varanasi on Monday.<br /><br />According to several source apportionment studies in Delhi, biomass burning is one of the leading causes of pollution in the Indo-Gangetic Plains. Particulate matter has the tendency and capability to travel over long distances. Scientists at IIT-Kanpur and the National Physical Laboratory have found in separate studies that they can travel to Delhi, Kanpur and Varanasi from as far as Afghanistan, Pakistan, Punjab and Haryana.<br /><br />Oxidised organic carbon compounds that are formed due to biomass burning also lead to longer spells of fog, Tripathi said. &ldquo;Once fog is formed, these particles change and attract more water droplets and lead to more fog. This becomes a vicious cycle where one instance of dense fog leads to a second instance of denser fog,&rdquo; he said.<br /><br />According to experts at the conference, air pollution cannot be Delhi&rsquo;s problem alone and cannot be solved by taking action only in the capital. &ldquo;We need to experiment and see what kind of impact is seen on fog if biomass burning is strictly stopped for a year. Our study says the impact will be immense,&rdquo; Tripathi said.<br /><br />A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single &lsquo;good&rsquo; air quality day in the past one year. Data from the Central Pollution Control Board has been analysed in the report.</div>                                                           
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    <br><a href="http://indianexpress.com/article/india/delhi-pollution-smog-crop-burning-for-fog-iit-4424138/" class="re" target="_blank">The Indian Express, 13 December, 2016, http://indianexpress.com/article/india/delhi-pollution-smog-crop-burning-for-fog-iit-4424138/</a><div class="clear"></div>
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Home हिन्दी

Blame crop burning for fog: IIT study -Mallica Joshi

Published on Dec 13, 2016   Modified on Dec 13, 2016

-The Indian Express A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single ‘good’ air quality day in the past one year. Varanasi: Burning agricultural residue doesn’t just bring down air quality, but also leads to longer spells of dense fog, scientists at the Indian Institute of Technology, Kanpur have concluded. While the concentration of oxidised organic carbon that is produced after burning biomass — crop stubble, forest residue and vegetation — is only 9 per cent on non-fog days, it rises to 35 per cent on days that see fog, says a study conducted by scientists at IIT. Delhi and major cities in Uttar Pradesh have been reeling under a prolonged spell of fog for the past two weeks. This is also the first time in six years that fog has descended in the capital so early on in December. The study — titled ‘Combined Effects of Organic Aerosol Loading and Fog Processing on Organic Aerosols Oxidation, Composition, and Evolution’ — was published in the peer-reviewed journal, Science of the Total Environment, in August. The study was conducted at Kanpur — one of the most polluted cities in India. The presence of these particles in the air also poses a long-term problem. “If they remain in the air for a longer time, they get oxygenated and become more hygroscopic, leading to more affinity towards water and hence the formation of fog,” said S N Tripathi, co-author of the study. Fog is formed when small water droplets become suspended in the air. The presence of particulate matter gives water droplets a medium to become suspended and aids the formation of fog. PhD students Abhishek Chakraborty and Tarun Gupta have co-authored the study. Tripathi was speaking at a conference — particulate matter trends and increasing respiratory ailments — in Varanasi on Monday. According to several source apportionment studies in Delhi, biomass burning is one of the leading causes of pollution in the Indo-Gangetic Plains. Particulate matter has the tendency and capability to travel over long distances. Scientists at IIT-Kanpur and the National Physical Laboratory have found in separate studies that they can travel to Delhi, Kanpur and Varanasi from as far as Afghanistan, Pakistan, Punjab and Haryana. Oxidised organic carbon compounds that are formed due to biomass burning also lead to longer spells of fog, Tripathi said. “Once fog is formed, these particles change and attract more water droplets and lead to more fog. This becomes a vicious cycle where one instance of dense fog leads to a second instance of denser fog,” he said. According to experts at the conference, air pollution cannot be Delhi’s problem alone and cannot be solved by taking action only in the capital. “We need to experiment and see what kind of impact is seen on fog if biomass burning is strictly stopped for a year. Our study says the impact will be immense,” Tripathi said. A report on air quality, released during the conference, said Varanasi and Allahabad have not seen a single ‘good’ air quality day in the past one year. Data from the Central Pollution Control Board has been analysed in the report.

The Indian Express, 13 December, 2016, http://indianexpress.com/article/india/delhi-pollution-smog-crop-burning-for-fog-iit-4424138/

Tagged with: Air Pollution Air Quality stubble burning Crop Residue Burning smog

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