Search results for "Indoor"

Analysis of gas sensors array signals for evaluation of mold contamination in buildings

2018

Mold is considered to be one of the most important features of Sick Building Syndrome (SBS) and is an important problem in building sector. In numerous cases it is caused by the rising moisture of building envelopes and overstated humidity of indoor air. Fungal contamination is normally evaluated using standard biological methods which are time-consuming and require a lot of manual labor. But also, fungi emit Volatile Organic Compounds (VOC) that can be detected in the indoor air using several techniques of detection e.g. chromatography. VOCs can be also detected using gas sensors arrays. All arrays of sensors generate particular electric signals that ought to be analyzed using statistical …

Visually low-impacting methods for the measurement of parameters related to IAQ risk indicators in exhibition halls

2021

Microclimate for cultural heritage plays a fundamental role in the degradation process of artefacts exhibited in museums. Generally, the Indoor Air Quality (IAQ) monitoring inside museums is based on conventional measurements of thermo-hygrometry parameters and longtime averaged measurements of atmospheric pollutants’ concentration. Unfortunately, all these approaches require electric supply and are usually characterized by a noticeable visual impact on the exhibition space, which clearly negatively affects the visitors’ experience. This paper intends to revisit and discuss a methodology (and its test application on field, to estimate the risk of damage of three artefacts displayed in an ol…

A Systematic Review of Air Quality Sensors, Guidelines, and Measurement Studies for Indoor Air Quality Management

2020

The existence of indoor air pollutants—such as ozone, carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen dioxide, particulate matter, and total volatile organic compounds—is evidently a critical issue for human health. Over the past decade, various international agencies have continually refined and updated the quantitative air quality guidelines and standards in order to meet the requirements for indoor air quality management. This paper first provides a systematic review of the existing air quality guidelines and standards implemented by different agencies, which include the Ambient Air Quality Standards (NAAQS); the World Health Organization (WHO); the Occupational Safety and Heal…

Relationship between domestic smoking and metals and rare earth elements concentration in indoor PM2.5

2018

Cigarette smoke is the main source of indoor chemical and toxic elements. Cadmium (Cd), Thallium (Tl), Lead (Pb) and Antimony (Sb) are important contributors to smoke-related health risks. Data on the association between Rare Earth Elements (REE) Cerium (Ce) and Lanthanum (La) and domestic smoking are scanty. To evaluate the relationship between cigarette smoke, indoor levels of PM2.5 and heavy metals, 73 children were investigated by parental questionnaire and skin prick tests. The houses of residence of 41 "cases" and 32 "controls" (children with and without respiratory symptoms, respectively) were evaluated by 48-hours PM2.5 indoor/outdoor monitoring. PM2.5 mass concentration was determi…

PARAMETRI STRUTTURALI DI SITI SPORTIVI INDOOR E RISCHIO RADON. RISULTATI PRELIMIARI DI UN'INDAGINE NELLE PALESTRE A PALERMO.

2008

ENVIRONMENTAL EFFECTS ON FRACTIONAL EXHALED NITRIC OXIDE IN ALLERGIC CHILDREN

2011

Fractional exhaled nitric oxide (FeNO) is a non-invasive marker of airway inflammation in asthma and respiratory allergy. Environmental factors, especially indoor and outdoor air quality, may play an important role in triggering acute exacerbations of respiratory symptoms. The authors have reviewed the literature reporting effects of outdoor and indoor pollutants on FeNO in children. Although the findings are not consistent, urban and industrial pollution—mainly particles (PM2.5 and PM10), nitrogen dioxide (NO2), and sulfur dioxide (SO2)—as well as formaldehyde and electric baseboard heating have been shown to increase FeNO, whilst ozone (O3) tends to decrease it. Among children exposed to …

WiseNET : an indoor multi-camera multi-space dataset with contextual information and annotations for people detection and tracking

2019

Nowadays, camera networks are part of our every-day life environments, consequently, they represent a massive source of information for monitoring human activities and to propose new services to the building users. To perform human activity monitoring, people must be detected and the analysis has to be done according to the information relative to the environment and the context. Available multi-camera datasets furnish videos with few (or none) information of the environment where the network was deployed. The proposed dataset provides multi-camera multi-space video sets along with the complete contextual information of the environment. The dataset regroups 11 video sets (composed of 62 sin…

A randomized controlled trial protocol for persistent physical symptoms associated with indoor environment or chronic fatigue : Effectiveness of vide…

2023

IntroductionPersistent physical symptoms (PPS) refer to symptoms that cannot be fully explained by structural bodily pathology or by environmental factors. Their impact on daily functioning varies from mild to severe disability. So far, evidence-based treatments for PPS have resulted in only small to moderate effects. Treatment protocols with a stronger orientation toward personalized approaches are needed to improve the efficacy and applicability of treatment. In this study, we aim to assess the effect of an online individual case conceptualization with web-based program for PPS. This study is conducted among two focus groups: patients with indoor air-related symptoms and patients with chr…

Phthalate esters (PEAs) and Polycyclic Aromatic Hydrocarbons (PAHs) in indoor dust matter of Palermo (Italy) area. Extraction, GC-MS analysis

2012

Studies on indoor pollution are important since people spend more than 80% of their time indoor environments. A variety of air pollutants, associated with volatile semi-volatile and particulate matter, are generated in indoor environment from human activities. Among the hazardous pollutants polycyclic aromatic hydrocarbons (PAHs) are important owing to their carcinogenicity and mutagenicity. Phthalates are introduced into the environment by anthropogenic sources. Phthalates with higher molecular weights are largely used as additives and plasticizers in plastic material (PVC), while those with lower molecular weights are components of solvents, adhesive, wax, ink, pharmaceutical products, et…

Phthalate esters in indoor dust matter of Palermo (Italy) area. Extraction, GC-MS analysis

2012

Indoor air is normally monitored using automatic. Consequently, the costs and difficulty in managing the monitoring of a great number of indoor environments appear immediately relevant. A practical problem in analyzing environmental contaminants is their very low concentration near or below the detectable analytical limits. In air, concentrations widely vary over time. Interpreting trace contaminants concentrations in air and predicting the threat they pose to human life under variable physical-chemical conditions are very difficult. The purpose of this work is to present a simple method to analyze phthalic esters in indoor dust, used as a passive sampler, because there is a correlation bet…