The present invention relates to a dust measuring apparatus and, more particularly, to a miniaturized fine dust measuring apparatus. According to one embodiment of the present invention, a non-sampling fluid is discharged irrespective of a speed change of an external fluid, thereby providing a particle sampling probe and a miniaturized fine dust measurement apparatus that provide uniform-speed sampling. Accordingly, it is possible to eliminate a restriction on a place for fine dust measurement.

An ionized material sample collection device according to the present invention includes one or a plurality of container's main bodies that each has a surrounding wall and a bottom wall and has a sample entrance in an upper portion of the surrounding wall, a sample impact target that is formed in the bottom portion of each of the container's main bodies, and one or more ionized material collection zones that are formed on at least one of the inner surfaces and the bottom surface of the surrounding wall of each of the container's main bodies. It is preferable that a plurality of the ionized material collection zones be formed on the inner surfaces of the surrounding wall and each of the plurality of ionized material collection zones be an ionized material collection zone which has an affinity for a different element.

The present invention relates to an environmental monitoring UAV system comprises a drone provided with an air monitoring platform that is adapted for taking air sample(s) by enforcing air to flow through or into at least one sampling medium, during the flight of said drone.

The present disclosure relates to remote accumulation of an analyte from a fluid medium in a fluid sampler that comprises a collection medium for accumulating the analyte. There is provided a mobile platform (20) configured to perform delivering the fluid sampler (10) to a target location for sampling the fluid medium. The high volume fluid sampler is connected to a conduit (30) that opens a position upstream or downstream of a fluid displacement means (21) for propelling the platform. Operating the displacement means generates a sampling flow F that exposes the collection medium, thereby accumulating the analyte, if present.

Methods and systems for detecting ambient aerosols are disclosed. An example method can comprise receiving an air sample comprising aerosol particles. A method can comprise determining at least one of concentration of the aerosol particles and size of an aerosol particle from the aerosol particles. A method can also comprise determining a composition of the air sample if at least one of the concentration exceeds a first predetermined threshold and the size exceeds a second predetermined threshold. A method can further comprise providing a notification indicating the presence of volcanic ash based on the determined composition of the aerosol.

A method for determining emissions in an exhaust plume (11) produced by a combustion engine of a vessel (10) during cruise of the vessel (10), said emissions comprising the presence or concentration of carbon dioxide (CO.sub.2) and/or sulphur dioxide (SO.sub.2) and/or the count and size of particles. The position and distribution of the exhaust plume (11) is determined or estimated on the basis of the position, bearing and speed of the vessel (10) and further on the basis of meteorological data, such as wind direction and speed. An unmanned aerial vehicle (UAV) (12), i.e. a so-called drone, is controlled to fly through the 10 plume (11) to make measurements of exhaust emissions of the vessel (10).

Systems, devices, and methods for a gas sensor comprising one or more optical cells; a processor having addressable memory, the processor configured to: detect gas from the one or more optical cells of the gas sensor, where the detected gas is one or more of: methane, carbon dioxide, hydrogen sulfide, water, ammonia, sulfur oxides, and nitrogen; record data corresponding to the detected gas, where the recorded data comprises at least one of: an ambient temperature from a temperature sensor, an ambient pressure from a pressure sensor, an aerial vehicle telemetry, and an aerial vehicle location from a global positioning system (GPS); and generate a map of atmospheric greenhouse gas concentration on a map based on the detected gas and the recorded data.