Dataset on exposure conditions to Fe2O3 and SiO2 colloidal suspension and airborne particulate matter (PM) suspensions: crude NIST1648a and with reduced content of organic matter, LAp120

Data for publication in Data in Brief. The dataset presents a comparative analysis of nebulization process of Fe2O3 and SiO2 nanoparticles or crude particular matters (PM), NIST1648a, and that with reduced content of organic matter, LAp120. Nebulization tests were carried out to determine concentrations of nanoparticle and PM suspensions, in order to create an atmosphere with a concentration of PM particles about 1000 μg/m3 of air in the exposure chambers. The experiments were performed on empty chambers in order to establish a proper exposure conditions for further experiments with laboratory animals.
The Excel file spreadsheets show the raw data for each figure presented in the manuscript. Raw data in Fig. 1 shows the absorbance spectra of Fe2O3 and SiO2 nanoparticle suspensions and NIST1648a and LAp120 suspensions in the range of 300-700 nm compared to the absorbance of deionized water. The Fig. 2 presents the relationship between the optical density and the concentration of Fe2O3 and SiO2 nanoparticle suspensions as well as NIST1648a and LAp120 suspensions at a wavelength of 300 nm. The Fig. 3 shows the concentrations of Fe2O3 (A) and SiO2 (B) nanoparticle suspensions and NIST1648a (C) and LAp120 (D) suspensions, control, non-nebulized (Ctrl) and after passing through nebulizers (Neb1-4), determined at the wavelength of 300 nm and expressed as a percentage of the control suspensions. The Fig. 4 shows the PM10 concentration in empty chambers, without animals, during nebulization of nanoparticle suspensions Fe2O3 (0.4 mg/ml) and SiO2 (0.6 mg/ml) and suspensions of NIST1648a and LAp120 (both 1.2 mg/ml). The Fig. 5 presents the air temperature and relative humidity in empty chambers, without animals, while nebulizing LAp120 suspension (1.2 mg/ml).
Nebulization of particle suspensions is one of the methods of introducing dust particles of air pollutants in experimental conditions into the atmosphere. The data are useful for everybody studying the influence of airborne PM or engineered nanoparticles on the laboratory animals through nebulization method.