Air pollution trends over Indian megacities and their local-to-global implications

BR Gurjar, K Ravindra, AS Nagpure - Atmospheric Environment, 2016 - Elsevier
More than half of the world's population lives in urban areas. It is estimated that by 2030
there will be 41 megacities and most of them will be located in develo** countries. The …

Engine combustion and emission fuelled with natural gas: a review

H Chen, J He, X Zhong - Journal of the Energy Institute, 2019 - Elsevier
Natural gas (NG) is one of the most important and successful alternative fuels for vehicles.
Engine combustion and emission fuelled with natural gas have been reviewed by …

Atmospheric polycyclic aromatic hydrocarbons: source attribution, emission factors and regulation

K Ravindra, R Sokhi, R Van Grieken - Atmospheric environment, 2008 - Elsevier
There is an increasing concern about the occurrence of polycyclic aromatic hydrocarbons
(PAHs) in the environment as they are ubiquitous in ambient air and some of them are …

Polycyclic aromatic hydrocarbon derivatives in airborne particulate matter: sources, analysis and toxicity

I Abbas, G Badran, A Verdin, F Ledoux… - Environmental …, 2018 - Springer
Polycyclic aromatic hydrocarbons (PAHs) are worldwide pollutants produced mainly during
incomplete combustion and pyrolysis of organic substances. PAH derivatives are …

Seasonal and site-specific variation in vapour and aerosol phase PAHs over Flanders (Belgium) and their relation with anthropogenic activities

K Ravindra, L Bencs, E Wauters, J De Hoog… - Atmospheric …, 2006 - Elsevier
The concentrations of 16 US-EPA criteria polycyclic aromatic hydrocarbons (PAHs) were
monitored during various seasons at six different cities/locations in the northern part of …

An empirical analysis on the adoption of alternative fuel vehicles: The case of natural gas vehicles

S Yeh - Energy policy, 2007 - Elsevier
The adoption of alternative fuel vehicles (AFVs) has been regarded as one of the most
important strategies to address the issues of energy dependence, air quality, and, more …

Source apportionment of traffic emissions of particulate matter using tunnel measurements

S Lawrence, R Sokhi, K Ravindra, H Mao… - Atmospheric …, 2013 - Elsevier
This study aims to quantify exhaust/non-exhaust emissions and the uncertainties associated
with them by combining innovative motorway tunnel sampling and source apportionment …

Impact of COVID-19 lockdown on ambient air quality in megacities of India and implication for air pollution control strategies

K Ravindra, T Singh, A Biswal, V Singh… - Environmental Science and …, 2021 - Springer
The impact of restrictions during various phases of COVID-19 lockdown on daily mean PM
2.5 concentration in five Indian megacities (New Delhi, Chennai, Kolkata, Mumbai, and …

High resolution vehicular PM10 emissions over megacity Delhi: Relative contributions of exhaust and non-exhaust sources

V Singh, A Biswal, AP Kesarkar, S Mor… - Science of the Total …, 2020 - Elsevier
Exposure to particulate matter (PM) from traffic can cause adverse health risks. Recent
studies project an increase in non-exhaust emissions in the future despite a reduction in …

GHG footprint of major cities in India

TV Ramachandra, BH Aithal, K Sreejith - Renewable and Sustainable …, 2015 - Elsevier
Concentration of greenhouse gases (GHG) in the atmosphere has been increasing rapidly
during the last century due to ever increasing anthropogenic activities resulting in significant …