Feb 13, 2004 - News release: Enviro Technology has supplied ten sets of Zambelli 6000 Isoplus Isokinetic sampling units together with digital isokinetic. May 6, 2018 - A low-volume sampler “Zambelli ISO PLUS 6000” collected the PM fractions. Case study of PM pollution in playgrounds in Istanbul 557.

• 240 Downloads • Abstract In a world where at least 50% of the population is living in urban environments, air pollution and specifically particulate matter (PM) have become one of the most critical issues for human health. Children are more susceptible than adults to air pollution and its adverse effects because they inhale and retain larger amounts of air pollutants per unit of body weight. In this study, PM pollution, particularly PM 10 and PM 2.5, at selected playgrounds were investigated in Istanbul city. Istanbul is a megacity of over 15 million inhabitants, and on-road traffic is increasing rapidly (over 3 million vehicles on the road). To estimate the effect of traffic emissions on children, the location of the playgrounds were selected according to traffic density. Measurements were carried out at five different playgrounds throughout the city in 2009.

Field results show that the values of PM 10 and PM 2.5 have reached critical limits at the playgrounds close to the main roads, especially at P-1. Thus, we focused on this location and investigated a source other than traffic emissions. One of the episode days has been observed on 5–7 March 2009.

Evaluations of meteorological events are very important to determine air pollution sources and their long-range transport. Therefore, the Weather Research and Forecasting model (WRF) was used to simulate and forecast meteorological parameters and the hybrid single-particle Lagrangian integrated trajectory (HYSPLIT) applied to investigate long-range transport. According to the WRF model outputs, there was a low-pressure system over Geneva gulf on the 500-hPa level, and its core had been located over Britain on 5 March 2009 00UTC.

The system had been sweeping dust from the Sahara Desert and carrying the air particles over Istanbul. Similarly, backward HYSPLIT analysis showed that air particles had moved through Istanbul from Northern Africa.

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Implications This study points out that the locations close to dense traffic are significantly affected by PM pollution. In addition, the atmospheric pollution in Istanbul is increasing with the transport of the trans-boundary PM. Hence, as an initial step, construction of playgrounds near major roadways should be prohibited, and they should be located within a predefined distance or farthest from dense-traffic roads. This strategy should be an integral part of the transportation and local urban planning. This type of solution can reduce the effect of PM pollution on children.

Image Quality and Features The a6000 uses a 24MP Exmor HD CMOS sensor and promises improved JPEG processing, thanks to its Bionz X processor. This latest version of the company's processor promises three major changes to JPEG processing: more sophisticated sharpening, aperture-dependent sharpening (to counteract diffraction), and context-sensitive noise reduction. The a6000 offers all sorts of features such as Auto Object Framing, which highlights and then creates a JPEG from what it thinks would be a better crop of your image, and sweep panorama, which does a pretty good job of stitching images together from a continuous pan of a scene. Add to this the dynamic range management DRO+ feature, one of the better in-camera HDR systems and multi-frame noise reduction and you can see the a6000 almost offers too much to sensibly test. Like most recent Sonys, there are three types of lens correction that can be applied by the camera: Shading Comp (vignetting correction), Chrom. (lateral chromatic aberration correction) and Distortion Comp (geometric distortion correction).

All three settings provide the option of 'Off' or 'Auto.' However, despite being clustered together (Menu/Settings/5) and offering matching options, their behavior isn't quite consistent.

Distortion Correction is automatically applied with any Sony lens that requires it as part of its design (such as the 16-50mm power zoom), with the option to turn it off greyed-out. When it's activated a tag is added to Raw files, which is applied by Sony's own software and can't be disengaged. Chromatic Aberration correction, by contrast, is always user-selectable; again when it's turned on, a tag is added to Raw files for use by Sony's software. However users of other Raw converters have the choice of whether or not to apply these corrections.