Continuous measurements of meteorological parameters, gaseous pollutants, particulate matters, and the major chemical species in PM2.5 were conducted in urban Hangzhou from 1 September to 30 November 2013 to study the potential sources and formations of PM2.5 pollution. The average PM2.5 concentration was 69 μg ̈m ́3, ~97% higher than the annual concentration limit in the national ambient air qua...

The article presents the research results dealing with influence of such natural minerals as flint and shungite in relation to following water parameters pH, TDS, conductivity, cations (NH4+, K+, Na+, Mg2+, Sr2+, Ba2+, Ca2+) anions (Cl−, SO42−, NO3−, F−, СО32−). It was found that crushed added more significantly increases hydrogen index if compared sedimentation. Simultaneously total mineraliza...

It has been well established that adequate and appropriate training is necessary for community health workers (CHWs) to effectively address the health care needs of their communities. We used qualitative analysis to evaluate a health-training curriculum in rural Guatemala in order to gain further insights into best practices regarding CHW trainings. Our results indicate that curricula aimed at ...

Anthropogenic activities such as industry, agriculture, and daily life are related to metal pollution of the environment. Places known of the highest impact are fishponds where intensive fish farming is believed to input a significant amount of various elements to water. Additionally, many studies suspect wetland hunting activity of water lead pollution. The present paper aims to check if hunti...

In classical aquaponics (coupled aquaponic systems, 1-loop systems) the production of fish in recirculating aquaculture systems (RAS) and plants in hydroponics are combined in a single loop, entailing systemic compromises on the optimal production parameters (e.g. pH). Recently presented decoupled aquaponics (2-loop systems) have been awarded for eliminating major bottlenecks. In a pilot study,...

In the present study, 11 size classes of particulate matter were collected from a semi-rural site in industrial city Ulsan, South Korea 2019 to investigate distribution and day–night variation water-soluble inorganic ions (WSIIs). Approximately 70% detected WSIIs found fine particles, with Na+, Ca2+, Cl?, NO3? dominant (~70%) coarse particles SO42?, NO3?, NH4+ (SNA) particles. Monthly total was...

A reduction in gaseous pollutants is an important method for mitigating PM2.5 concentration the atmosphere, and SO2/NH3/NOx beneficial to control secondary inorganic aerosols PM2.5. In this study, Weather Research Forecasting model with Chemistry (WRF-Chem) was applied study impact on its using scenario simulation Beijing–Tianjin–Hebei (BTH) region. The results showed that BTH region characteri...

Size-segregated aerosols (five stages from <1.1 to >7 μm in diameter) collected a coastal location south-west peninsular India were analysed for water-soluble ionic species, carbonaceous and metallic species on seasonal basis two years (2017–19). The annual mean concentration of the components Na+, Ca2+, Mg2+, Cl−, NO3−, Al, Fe exhibited coarse mode (> 2 μm) enhancement; while NH4+, K+, SO42−, ...

Abstract. Wet scavenging is an efficient pathway for the removal of particulate matter (PM) from atmosphere. High levels PM have been a major cause air pollution in Beijing but decreased sharply under Air Pollution Prevention and Control Action Plan launched 2013. In this study, 4 years observations wet deposition conducted using sequential sampling technique to investigate detailed variation c...