Foliar surface undergoes several structural and functional changes when particulate-laden air strikes it. An attempt was made to evaluate the quality of air in terms of respirable suspended particulate matter (RSPM), suspended particulate matter (SPM), sulphur dioxide (SO2) and nitrogen dioxide (NO2) along with biochemical parameters of twelve selected roadside plant species at industrial, traffic, residential and rural areas of Rourkela city in India. Increase concentration of heavy metals (Fe, Cu and Zn) was recorded at site B (industrial area).

Jharkhand, a state in India is rich in minerals particularly coal. Large number of mines is excavated here. Opening of new mines and expanding existing mines causes air pollution. The main pollutants emitted are suspended particulate matter, oxides of nitrogen, sulphur dioxide and carbon dioxide. In this paper empirical models are developed to calculate SPM concentration in terms of NOx concentrations and SO2 concentrations. It has been seen that there is a good linear relationship between hourly SPM and NOx concentrations and also between SPM and SO2 concentrations.

Ambient air quality monitoring was carried out in the vicinity of dam and nearby residential sites in four river basins in Karnataka with reference to SPM, RSPM, SO2 and NOx, employing Envirotech APM-460 Respirable Dust Sampler with provision to keep impingers having absorbing reagent. Further, three different methods of Air quality index (AQI) calculation on based on SPM and RSPM values were used to evaluate the prevailed ambient air quality in the near and surroundings areas at the time of dam constructional activities.

Epidemiological studies have shown adverse effects of short-term exposure to air pollution on respiratory disease outcomes; however, few studies examined this association on an hourly time scale. We evaluated the associations between hourly changes in air pollution and the risk of respiratory disease in the elderly, using the time of the emergency call as the disease onset for each case.

Recent reports from the Intergovernmental Panel on Climate Change's "Summary for Policymakers" make for alarming reading about the global warming phenomenon. How bad climate impacts will be beyond the mid-century depends crucially on the world urgently shifting to a development trajectory that is clean, sustainable, and equitable, a notion of equity that includes space for the poor, for future generations and other species.