Global S&T Development Trend Analysis Platform of Resources and Environment
Despite reductions in pollution, Delhi's air quality violated daily safety limits during lockdown: TERI | |
admin | |
2021-02-02 | |
发布年 | 2021 |
语种 | 英语 |
国家 | 印度 |
领域 | 资源环境 |
正文(英文) | Despite reductions in pollution, Delhi's air quality violated daily safety limits during lockdown: TERIRegional sources of biomass burning and industries main contributors to Delhi's air pollution during lockdown, the report's findings suggest. New Delhi, February 02, 2021: The statistical analysis of 32 CPCB monitoring stations of Delhi during lockdowns revealed an average reduction of 43% and 61% in Particulate Matter 2.5 (PM2.5) and Nitrogen Oxides (NOx) concentrations in 2020, with respect to 2019 despite reduced wind speeds and mixing heights. However, a special air quality monitoring study conducted by TERI at three of its own monitoring stations in Delhi in Lodhi Road, Patel Nagar and Laxmi Nagar during a monitoring period of 45 days showed that despite the statistically significant reduction in PM2.5 and NOx levels in Delhi during the lockdowns, the PM2.5 levels still violated the daily safe limits, 31-60% of the monitoring days at the three locations. This is one of the many key findings from a report on ‘Assessment of air quality during lockdowns in Delhi', released today by The Energy and Resources Institute (TERI), with the support of Bloomberg Philanthropies. In spite of the restrictions at the local level curbing vehicular movement, construction activities along with functioning of several industries amidst the Covid-19 lockdowns, "contributions from upwind locations kept the pollution levels above the prescribed standards on many days during lockdowns in Delhi," the report said. Biomass burning was found to be one of the key contributors to the high PM2.5 levels in Delhi and was mostly attributed to burning of wheat residue in farms and firewood in rural kitchens. Regional scale pollution from industries also contributed significantly to Delhi's pollution during lockdowns. The study concludes that an airshed based approach needs to be adopted in order to address the problem of air pollution in Delhi. Speaking on the occasion, Dr Ajay Mathur, Director General, TERI, said, "Unless we tackle regional sources with equal or more intensity we will not achieve air quality standards in Delhi. State governments need to come together and contribute." Dr Sumit Sharma, Director, Earth Science and Climate Change Division, said, "Despite lockdowns and more dispersive meteorology in summers, the pollutant levels were way above the standards on most days. Focusing just on city level plans will not be enough, let's start preparing and implementing regional level air quality management plans in India." Priya Shankar, India Director, Climate and Environment Program, Bloomberg Philanthropies said, "The Covid - 19 lockdown period provided a window to identify the underlying causes of air pollution in Delhi. This report highlights the importance of coordinated, collaborative and multi-level action for addressing air pollution to improve quality of life and protect public health." A summary of key findings is as follows -
About TERIThe Energy and Resources Institute (TERI) is an independent, multi-dimensional organisation, with capabilities in research, policy, consultancy and implementation. It has pioneered conversations and action in the energy, environment, climate change, and sustainability space for over four decades. The institute's research and research-based solutions have had a transformative impact on industry and communities. Headquartered in New Delhi, it has regional centres and campuses in Gurugram, Bengaluru, Guwahati, Mumbai, Panaji, and Nainital, supported by a multi-disciplinary team of scientists, sociologists, economists and engineers, and state-of-the-art infrastructure. For further information, contact: shreyas.joshi@teri.res.in |
URL | 查看原文 |
来源平台 | Energy and Resources Institute |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/313402 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | admin. Despite reductions in pollution, Delhi's air quality violated daily safety limits during lockdown: TERI. 2021. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[admin]的文章 |
百度学术 |
百度学术中相似的文章 |
[admin]的文章 |
必应学术 |
必应学术中相似的文章 |
[admin]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论