Lata Envirotech Services

Kasna, Greater Noida, Uttar Pradesh

The increasing impacts of pollutants and hazards to the health and industrial workers has resulted in effect on accurate, reliable and frequent assessment of work space pollution and worker-exposure. The data generation needed for corrective measures to safe the workers as per Factory act 1948 and amendment in 1986-87. Lata Envirotech Handy Sampler Model APM 831 APM 831 used best light weight pump battery operated to suck air through 25 mm dia filter and through suitable absorption solution contained in Impingers (2Nos) fitted. Thus besides particulates any two gaseous pollutants can be monitored simultaneously. Rechargeable battery has been used with sufficient storage of power to operate the sampler for 8 hours. A charger is also provided with APM 831 to recharge the battery. The APM 831 system uses a small battery operated pump to draw air thorough a suitable absorption solution contained in an impinger. If necessary, 2 impingers can be used in series to monitor 2 gaseous pollutants. There is an additional provision to determine suspended particulates in the same exercise by using the open sampling head designed for 25mm diameter filters or membranes. The same hardware can be used to sample a variety of pollutants including oxides of sulphur and nitrogen, halogens, ammonia, sulphides, etc. The particulate sampling head provided with the system is useful for monitoring particulates like silica, cement dust, metal fumes and asbestos fibers in work areas of cement plants, foundries, etc. To ensure complete absorption and reduce loss of absorbing solutions by evaporation, the impinger tubes of the APM 831 are kept in an insulated ice tray.

Special Features :

• Battery operated pump runs for a full shift of 8 hrs.
• Rechargeable, Maintenance free Battery.
• Provision for the system to operate off the mains also.
• Calibration Certificate for each instrument shall be provided with instruments

The APM 154 system is a manual method for sampling fine particles (PM2.5 fraction) and is based on impactor designs standardized by US-EPA for ambient air quality monitoring. Ambient air enters the APM 154 series samplers system through an omni-directional inlet designed to provide a clean aerodynamic cut-point for particles greater than 10 microns. Particles in the air stream finer than 10 microns proceed to a second impactor that has an aerodynamic cut-point at 2.5 microns. The air sample and fine particulates exiting from the PM 2.5 impactor are passed through a 47 mm diameter Teflon filter membrane that retains the fine particulate matter. The sampling rate of the system is held constant at 1m3/hr by a suitable critical orifice. The standard system is supplied with a Dry Gas Meter to provide a direct measure of the total air volume sampled. As per recent Air quality standard published by Govt. of India where measurement of PM 2.5 dusts has been made mandatory besides other parameters for defining the quality of ambient air. An Impactor based PM10/2.5 Sampler has been manufactured by Lata Envirotech Services which meet requirements of PM 2.5 is sampling using APM 154; PM 2.5 concentration in ambient air can be measured gravimetrically by using this sampler. APM 154 fitted with brushless and noiseless pump assembly where sampling rates of 1m3/hr is maintained constant with the help of orifice.

Special Features :

• PM10 and PM2.5 Impactors of sampler based on designs standardized by US-EPA
• Two part cabinet ensures that temperature of PM 2.5 filter remains close to ambient temperature.
• Diaphragm Pump with a low noise
• Lower sampling rate of 1m3/hr reduces filter choking even in areas having high FPM levels
• Critical Orifice maintains constant sampling rate of 1 m3/hour
• Sampler can run continuously 28 hrs monitoring
• Low power consumption
• Low weight essay to transport in field
• Can be measure PM10 or PM2.5 at a time
• Calibration Certificate for each instrument shall be provided with instruments
• Compact and portable.
• Weight - Approx 25 Kg.

Monitoring of stacks and vents are requirement to ensure that emission of air pollutants are within the limit prescribed by regulatory authorities. By regular monitoring of emission one can establish that functioning and performance of installed control system are within the designed limits. Emission data also helps in improving performance of Air Pollution Control System energy saving and helps in optimizing process operation. Lata Envirotech Stack Sampler APM 160 has been developed to fulfill these requirements where user ease and emission monitoring regulations requirement have been given due consideration for reliable data generation. Stack Sampler APM 160 is light weight and portable system fitted with suction pump, with digital pyrometer and digital differential meter. Shifting of instrument from one stack to another stack is very easy. Measurement for differential pressure done by using S-Type Pitot Tube and digital differential meter. High quality leak proof push fitting for Thermocouple and Pitot tube are used. Two dial type vacuum gauges are provided for onsite monitoring of pressure drop in gas stream and particulate stream separately. Thimble holder nozzle and probe pipe has been fitted with Viton O Ring for leak proof connection. Thimble holder can accommodate CFT and GFT and Silica thimble with no extra efforts. Measurement temperature of outgoing gases after cooling can be done with the help of Thermometer which is placed in the impinger tube.