A study on the applicability of zinc acetate impregnated silica substrate in the collection of hydrogen sulfide by active sampling

et al. 2022

J. Phys.: Conf. Ser.

Thermo-mineral springs are widely spread over the volcanic areas of Naples and Salerno, two cities of southern Italy. Their use has been known by local inhabitants since they were one of the main curative therapies in the past. The variability of microclimate conditions, contaminations, air pollution and influence of visitors could be an important parameter for conservation of historical structure and to evaluate the damage of place, since atmospheric and gaseous pollutants could affect cultural heritage. The aim of this work was the determination of air concentration of H2S, SO2, δ13CO2, chemical and microclimatic characterization of the thermal springs in Contursi Terme (Salerno, Italy) and Agnano (Naples, Italy), in order to assess their concentrations and potential effects on cultural heritage and human health.

Section: Materials and Methods 21 Air Monitoringmentioning

confidence: 99%

Evaluation of air pollutants in thermal-mineral springs: a case study of Agnano (Naples, Italy) and Contursi Terme (Salerno, Italy)

et al. 2022

J. Phys.: Conf. Ser.

“…More recently, microplastics have been recognized as air pollutants [ 55 , 56 , 57 , 58 , 59 ]. Alongside other atmospheric contaminants such as nitrogen oxides [ 60 , 61 , 62 ], hydrogen sulfide [ 63 , 64 ], carbon dioxide [ 65 , 66 ], persistent organic pollutants [ 67 ], and BTEX [ 68 , 69 ], their concentration should be regularly monitored to ensure human safety. Several studies have shown that atmospheric microplastic particles can be carried to remote areas by atmospheric events such as winds [ 70 , 71 , 72 , 73 ], ocean currents [ 2 , 74 , 75 ], river outflow, and drift [ 76 , 77 ].…”

Section: Occurrence Analysis and Abundance Of Microplastics In The Environmentmentioning

confidence: 99%

Microplastics in the Environment: Intake through the Food Web, Human Exposure and Toxicological Effects

et al. 2021

Toxics

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162

Recently, studies on microplastics (MPs) have increased rapidly due to the growing awareness of the potential health risks related to their occurrence. The first part of this review is devoted to MP occurrence, distribution, and quantification. MPs can be transferred from the environment to humans mainly through inhalation, secondly from ingestion, and, to a lesser extent, through dermal contact. As regards food web contamination, we discuss the microplastic presence not only in the most investigated sources, such as seafood, drinking water, and salts, but also in other foods such as honey, sugar, milk, fruit, and meat (chickens, cows, and pigs). All literature data suggest not-negligible human exposure to MPs through the above-mentioned routes. Consequently, several research efforts have been devoted to assessing potential human health risks. Initially, toxicological studies were conducted with aquatic organisms and then with experimental mammal animal models and human cell cultures. In the latter case, toxicological effects were observed at high concentrations of MPs (polystyrene is the most common MP benchmark) for a short time. Further studies must be performed to assess the real consequences of MP contamination at low concentrations and prolonged exposure.

“…Several air pollutants (NO x , SO x , and CO 2 ) have negative effects on cultural heritage because of their chemical reaction with raw materials, so many efforts were devoted to finding simple methods able to monitor their concentration (Cucciniello et al 2012(Cucciniello et al , 2017Motta et al 2014Motta et al , 2018.…”

Section: Investigations On the Deterioration Of Cultural Heritage Caused By Efflorescencesmentioning

confidence: 99%

Investigations on historical monuments’ deterioration through chemical and isotopic analyses: an Italian case study

et al. 2021

Environ Sci Pollut Res

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In this paper, we analysed the efflorescences present in the frescos of a monumental complex named S. Pietro a Corte situated in the historic centre of Salerno (Campania, Italy). The groundwater of the historic centre is fed by two important streams (the Rafastia and the Fusandola) that can be the sources of water penetration. The aims of this work are to (i) identify the stream that reaches the ancient frigidarium of S. Pietro a Corte and (ii) characterize the efflorescences on damaged frescos in terms of chemical nature and sources. In order to accomplish the first aim, the water of the Rafastia river (7 samples) and the water of the Fusandola river (7 samples) were analysed and compared with the water of a well of the Church (7 samples). The ionic chromatography measurements on the water samples allowed us to identify the Rafastia as the river that feeds the ancient frigidarium of S. Pietro a Corte. To investigate the nature and the origin of the efflorescences (our second aim), anionic chromatography analyses, X-ray diffraction measurements, and the isotopic determination of nitrogen were performed on the efflorescences (9 samples) and the salts recovered from the well (6 samples). Results of these analyses show that efflorescences are mainly made of potassium nitrate with a δ15N value of + 9.3 ± 0.2‰. Consequently, a plausible explanation for their formation could be the permeation of sewage water on the walls of the monumental complex.