Publications by authors named "H C Chandola"
Source apportionment of carbon monoxide over India: a quantitative analysis using MOZART-4.
Environ Sci Pollut Res Int
February 2021
MOZART-4 chemistry transport model has been used to examine the contribution of carbon monoxide (CO) from different source regions/types by tagging their emissions in model simulations. These simulations are made using tagged tracer approach to estimate the relative contribution of different geographical regions and different emission sources, such as anthropogenic or biomass burning to the CO concentration at the surface, in the planetary boundary layer (PBL), and in the free troposphere (FT) over the Indian sub-continent. The CO budget analyses highlight the significant contribution of the Indian emissions on surface CO and influence of chemical production on the free tropospheric CO concentration.
View Article and Find Full Text PDFContinuous measurements of Black Carbon (BC) aerosol mass concentrations were carried at Dehradun (30.33°N, 78.04°E, 700 m amsl), a semi-urban site in the foothills of north-westHimalayas, India during January 2011-December 2017.
View Article and Find Full Text PDFArticle Synopsis
- The study analyzes biomass burning trends and their effects on aerosol properties in Northern India using satellite data from January 2003 to December 2017, finding an overall increase in fire occurrences over the years.
- It identifies significant fire seasons, predominantly pre-monsoon and post-monsoon, with specific hotspots in Punjab and Haryana contributing notably to total fires, mostly due to crop residue burning.
- The research indicates that this burning elevates aerosol optical depth and related parameters, impacting air quality and regional aerosol movement, supported by both satellite and ground-based observations.
Background: Relief of pain is very important goal intraoperatively and postoperatively. Neostigmine has been used successfully intrathecally with other agents such as clonidine and opioids for pain relief.
Aims: This study aims to compare and evaluate the efficacy and safety of combining intrathecal (IT) neostigmine with IT clonidine and transdermal nitroglycerin (tNTG) patch for the relief of pain in patients after surgery.
Background: Reduction in central sensitization by gabapentinoids that include gabapentin and pregabalin may reduce acute postoperative pain.
Aims: The aim of this study is to evaluate postoperative analgesic benefit and efficacy in patients administered with oral gabapentin or pregabalin as premedication for laparoscopic cholecystectomy under general anesthesia.
Settings And Design: Randomized, prospective, and comparative study.