Process analysis, observations and modelling - Integrated solutions for cleaner air for Delhi (PROMOTE)

职务名称：过程分析、观测和建模--德里清洁空气综合解决方案（PROMOTE）空气污染已被广泛认为是一个主要的全球健康风险。鉴于每10例死亡中就有1例可归因于空气污染（世界银行，2016年），这对世界城市产生了重大影响。作为印度-恒河平原（IGP）的一部分，德里受到来自复杂混合源的空气污染。由于该地区复杂的排放和气象，颗粒物（PM为PM10和PM2.5），氮氧化物（NOx，NO2），二氧化硫（SO2），一氧化碳（CO）和黑碳（BC）都在季风后时期达到峰值，并在冬季保持高水平，使国家首都地区（NCR）成为污染最严重的地区之一。关于模型无法准确预测冬季雾事件期间的空气污染以及量化从大距离进入德里的空气污染，仍然存在悬而未决的问题。PROMOTE旨在通过开展面向过程的观测和建模分析，减少德里空气质量预测和预报的不确定性，并得出最有效的缓解方案，以减少城市和郊区的空气污染。周边地区。PROMOTE汇集了来自印度和英国的领先研究人员组成的跨学科团队，以实现项目目标。它的调查将解决三个关键问题：Q1气溶胶对德里的空气污染负担有什么贡献？低层大气边界层如何影响进入德里的空气污染的远距离传输？Q3什么是最有效的减排干预措施，将导致显着减少空气污染和暴露水平超过德里和更广泛的国家首都地区的排放控制？为了解决这三个关键问题，我们将：1通过开发一个新的亚热带城市环境的代表性模式方案，研究二次气溶胶对德里不同气象季节空气污染负担的贡献;2调查边界层相互作用如何导致影响德里的季风前和稳定的冬季雾期间的高空气污染事件; 3通过更好地了解气溶胶、远距离传输和边界层过程，量化地方、城市和区域对德里空气质量的贡献; 4测试德里的空气质量预报系统，将对气溶胶污染和大气边界层过程的更好理解纳入其中;5开发第一个多尺度建模系统，用于预测PM2.5、PM10、NO2和其他污染物的高分辨率浓度，然后为德里制定有效的缓解战略提供分析; 6将PROMOTE的成果与其他APHH项目进行综合和转化，为暴露和健康研究提供数据集，并为实施有效的地方和区域缓解战略提供路线图，以满足德里和NCR当前和未来的合规性和健康要求。通过我们的分析，我们将提供关于当地，城市和区域（LRT）空气污染源如何影响德里空气质量的新知识。随着对气溶胶和低层大气动力学的进一步了解，空气污染物浓度与当地（如交通、工业）和区域贡献变化之间的敏感性将通过一个新的多尺度建模系统进行量化，以便为德里提出干预措施和缓解方案。

Title: Process analysis, observations and modelling - Integrated solutions for cleaner air for Delhi (PROMOTE)Air pollution has been widely recognized as a major global health risk. Given that 1 in every 10 total deaths can be attributed to air pollution (World Bank 2016), there are major implications for the cities of the world. As part of the Indo-Gangetic Plain (IGP), Delhi is subject to air pollution from a complex mixture of sources. As a consequence of the complex emissions and meteorology of the region, particulate matter (PM as PM10 and PM2.5), nitrogen oxides (NOx, NO2), sulphur dioxide (SO2), carbon monoxide (CO) and black carbon (BC) all peak during post-monsoon periods and remain elevated during winter making the National Capital Region (NCR) one of the most polluted areas. Open questions remain regarding the inability of models to accurately predict air pollution during winter time fog events and quantifying incoming air pollution from large distances into Delhi.Over 4 years, PROMOTE aims to reduce uncertainties in air quality prediction and forecasting for Delhi by undertaking process orientated observational and modelling analyses and to derive the most effective mitigation solutions for reducing air pollution over the urban and surrounding region. PROMOTE brings together a cross-disciplinary team of leading researchers from India and the UK to deliver the project aims. Its investigations will address three key questions:Q1 What contribution is made by aerosols to the air pollution burden in Delhi?Q2 How does the lower atmospheric boundary layer affect the long range transport of air pollution incoming into Delhi?Q3 What are the most effective emission controls for mitigation interventions that will lead to significant reductions in air pollution and exposure levels over Delhi and the wider National Capital Region? To address the three key questions we will:1 Examine the contribution of secondary aerosols to the air pollution burden in Delhi during distinct meteorological seasons by developing a new representative model scheme for subtropical urban environments;2 Investigate how boundary layer interactions lead to high air pollution events during pre-monsoon and stable winter fog periods affecting Delhi; 3 Quantify local, urban and regional contributions to Delhi's air quality through an improved understanding of aerosols, long-range transport and boundary layer processes;4 Test the Delhi's air quality forecasting system incorporating improved understanding of aerosol pollution and atmospheric boundary layer processs;5 Develop the first multiscale modelling system for predicting high resolution concentrations of PM2.5, PM10, NO2 and other pollutants and then provide the analysis for developing effective mitigation strategies for Delhi;6 Synthesise and translate the outcomes of PROMOTE with other APHH projects to provide datasets for exposure and health studies and contribute to a roadmap for implementing effective local and regional mitigation strategies to meet current and future compliance and health requirements in Delhi and NCR. Through our analysis, we will deliver new knowledge on how local, urban and regional (LRT) sources of air pollution affect Delhi's air quality. With an improved understanding of aerosols and lower atmosphere dynamics, sensitivities between air pollutant concentrations and changes in local (e.g. traffic, industrial) and regional contributions will be quantified with a new multiscale modelling system for recommending interventions and mitigation options for Delhi.