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This paper is in the context of studies on the variability of atmospheric factors that highlight the fluctuations associated with climate changes. The acquisition of data for the concentration of NO, NO2 and NOx was collected from the national air quality monitoring system which includes 158 monitoring stations. the monitored national area was divided into 8 study areas to facilitate the calculations. In this paper we present the significant results for the Southeast of Romania for a period of 5 years - between 20...

This paper presents the spatial and temporal variability of sulfur and carbon oxide concentrations in the South-eastern part of Romania. Climate change is a general threat to the provision of essential individual resources. The acquisition of data for CO and SO2 concentration was collected from the national air quality monitoring system which includes 158 monitoring stations. The acquisition of data for the concentration of CO and SO2 were collected from the national air quality monitoring system which includes 15...

This paper presents the degree of noise pollution in Braila. Braila is a city located in southeastern Romania. For this purpose, sound level measurements were performed in various important locations in this city. The monitoring took place between November 2019 and June 2020. The measurements were performed using a professional digital acoustic sound level meter that can record sound values between 30dB-130dB. The sound level meter works with two frequency filters: -A- and -C-. -A- filter responds in the same way ...

The distinction between noise and sound is mainly based on the discomfort of the latter, the noise being perceived as a negative sensation, while sounds are generally perceived as being pleasant. Noise and noise pollution are practically identical terms. Noise pollution is the exposure of humans and / or animals to sounds whose frequencies and intensities are harmful, affecting the auditory system, inducing stress or other instant or long term effects on the physical and mental health. For too recently, it has bee...

Air pollution causes plant injury such as burning leaf margins or tips, delayed grown, root damage and premature leaf drop. An increased pollution also influences the leaf water content, the amount of chlorophyll in the plant and the ability to photosynthesize. In this study we have investigated four types of trees in six areas of Galati. Selected areas are scattered throughout the city and have different degrees of pollution. Samples were taken at regular intervals from the start burgeoning until maturity. The tr...

The main objective of this paper was to assess the water quality in Siret, in the Galati area. Galati is a port town on the Danube River in south-eastern of Romania. For the purpose of carrying out these studies, water samples from ten Siret sites were taken. Water quality has been monitored between November 2016 and December 2017. Physical and chemical characteristics of water were performed. The PFP7 Flam Photometer was used for potassium and calcium ions determination. An UV-VIS Specord 210 Spectrophotometer wa...