A flow means with a housing and a fan to generate a fluid flow within a pipe or hose line of an intake monitoring system. The fan can be connected to the pipe or hose line via connecting pieces and can be driven to rotateaxis . The invention creates a flow means (100) which enables the direction of flow to be reversed. Respective blocking means are assigned to the connecting pieces and can be moved from an intake position (PS), in which an intake region of the fan is connected to the respective connecting piece into an exhaust position (PB), in which an exhaust region of the fan is connected to the respective connecting piece so the flow within the pipe or hose line is in a first direction of flow (S1) or in a second direction of flow (S2) as a function of the position (PS, PB) of the blocking means.

The present invention discloses a Traceable emission remote monitoring system and method. The system comprises a remote sensing unit, a transformation data processor, and a local control unit. The local control unit receives local resource information to generate control commands and transmits the same to the remote sensing unit; the remote sensing unit remotely senses emissions that an object emits based on the control commands, and transmits individual emission data to the transformation data processor for processing and analysis to obtain a first analytic result; the local control unit provides various derivative services to generate a second analytic result. In some embodiments, the system further comprises a cloud platform for generating a comprehensive analysis report. The present invention further discloses a traceable emission remote sensing method. The Traceable emission remote monitoring system and method according to the present invention are real-time, convenient, fast and accurate, and can make it digitalized and networked for the emissions that a single object emits and the emission of regional and trans-regional comprehensive emissions, and can thus help the supervision department formulate effective regulatory strategies.

A method for conducting environmental sampling includes determining to environmentally sample a particular paper transit ticket for a specific residue. Using an automated ticket device, at least one chemical reagent is applied to the particular paper transit ticket. The chemical reagent is selected based on the specific residue. The particular paper transit ticket is collected after the particular paper transit ticket was used as a fare media within a transit system. The at least one chemical reagent is analyzed to determine whether any of the specific residue is present.

A disposable microbe-collecting carrier cartridge and a carrier treating apparatus which efficiently convert microbes collected on a carrier into a solution and prevent variations in the amount of retrieval of microbes upon concentration on a filter are provided. A cartridge formed of an upper lid having a plurality of through holes, a container in an inverted-cone shape having both of a liquid storage sink unit having a filter at the bottom and an air suction path, and a support base for setting up a thermoplastic carrier, and a carrier treating apparatus formed of a dispensing nozzle for liquid supply, a liquid supply mechanism, a liquid heating mechanism, and a suction pump for filtration are prepared. Warm water is supplied onto the filter set up on a bottom surface of the inverted-cone-shaped. The contact with the warm water causes the carrier to be solated filtered through the filter.

A gas monitoring and control system including a gas sampling chamber, sampling inlet and outlet valves, a pump and a controller. Sensors are disposed within the interior chamber that sense characteristics of a gas from a gas source and generate representative signals. The sampling inlet and outlet valves i) allow the gas into the gas sampling chamber while operating in a gas sampling state, and ii) allow ambient air into the gas sampling chamber while operating in a purge state. The pump i) causes the gas to flow through the gas sampling chamber while operating in the gas sampling state or ii) causes ambient air to flow through the gas sampling chamber while operating in the purge state. The controller causes the sampling inlet and outlet valves, and the pump to alternate operating in the gas sampling or purge state to selectively expose the sensors to the gas.

Tools, methods and systems for filtering air, identifying contaminants in the air being filtered, collectivizing the contaminant data from a network of filtering systems to identify the source of the contaminant, allowing for real-time mapping of the flow of contaminants in the air and predictive location mapping. Filtration systems receive, analyze, identify, track and report the presence of contaminants in the air using one or more computing systems, or specialized air filtration systems which may be either a self-contained computing systems, connected to a computing system or connected to a computing network. Messaging services provide updates, alerts and reports regarding the presence of the contaminant to the general public and/or selective alerts to medically sensitive or endangered individuals whose medical information indicates the contaminant is harmful or dangerous to particular individuals present in the surrounding area.

The present disclosure provides systems and methods for collecting distributed information regarding air quality and air management system performance, and providing recommendations for affecting the air quality, the air management system, or individuals subject to or in control of either the air quality or the air management system.

An improved device for collecting particulate matter suspended in the ambient air is disclosed comprising a container extending between an open first end and a closed second end defining a container interior. A container output communicates with a container interior located proximate the closed second end of the container. A filter cassette comprising a collection filter is permanently affixed to a filter holder. A retainer having a retainer input retains the filter cassette between the retainer input and the container output. An output connector connects the container output to a low pressure source for drawing ambient air into the retainer input for enabling the collection filter to collect particulate matter suspended in the ambient air entering the retainer input. Preferably, the filter holder and the filter are disposable.

One variation of a pathogen detection system includes an air sampler and a cartridge. The air sampler includes: a housing defining an inlet and an outlet; a tunnel arranged within the housing and extending between the inlet and the outlet; a charge electrode arranged within the tunnel proximal the inlet; a cartridge receptacle arranged proximal the outlet and comprising a cartridge terminal; and a power supply configured to drive a voltage between the charge electrode and the cartridge terminal. The cartridge includes: a substrate; a collector plate arranged on the substrate and configured to collect charged bioaerosols moving through the tunnel; and a connector configured to transiently engage the cartridge receptacle to locate the substrate and the collector plate within the tunnel and electrically couple the collector plate to the cartridge terminal.

A dust sampling system including a dust sampler and a vehicle on which the dust sampler is placed. The dust sampler has a suction unit, a cyclone, a dust collection container, and an air intake conduit. The suction unit draws in air containing dust particles. The cyclone centrifugally separates the dust particles from the drawn-in air. The cyclone has an air input port, a particle discharge end, and an air output port connected to the suction unit. A dust collection container is positioned underneath the cyclone to receive the separated dust particles from the cyclone. The air intake conduit has an air inlet and an air outlet connected to the air input port of the cyclone. The suction unit draws in the air containing the dust particles into the air inlet of the air intake conduit while the vehicle moves to collect samples of fugitive dust from a road.