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air and exhaust gas monitoring

in recent years, with the progress and development of the times, china has achieved remarkable results in the process of continuously strengthening the construction of urban civilization, but at the same time, there is an increasingly serious problem of environmental pollution. when all kinds of environmental pollution have become the sufferings of people's livelihood and the pain of the people, environmental governance came into being. in this regard, china's efforts to control air pollution are increasing, and relevant air pollution prevention measures have been formulated, which has achieved certain results. however, it is necessary to further strengthen the prevention and control of air pollution, adopt scientific means, reduce the release of pollution sources, and truly achieve a new situation of prevention first, and the organic combination of treatment and prevention, so as to improve air quality.

the existence of air pollution is mainly caused by the excessive use of energy and the neglect of environmental protection for the sake of economic development in the early stage, especially in economically developed and heavy industrial areas. in view of the air pollution in this situation, the state has expressly stipulated to optimize the industrial structure, improve the use of energy sources, and recommend the use of clean energy and green energy to reduce air pollution. the more specific work is to eliminate the use of coal as much as possible, update technical equipment, adopt gas system, reduce the emission of harmful substances, strengthen the training of environmental protection laws and regulations, improve environmental awareness, reduce the emission of air pollutants, and improve air quality.

among the air pollution, the most prominent is that the pollutants exceed the standard, and the main source is the emission of pollutants caused by coal combustion. in order to reduce air pollution, dust removal equipment can be used in relevant enterprises. at present, dry and wet methods, electrostatic methods and filtration methods are widely used. the principles of the three are different, but the goal is the same. through its treatment, the removal of large particulate pollutants in the air can effectively improve the content of large particulate pollutants in the atmosphere, improve air quality, and achieve the prevention and control of air pollution.

in short, the prevention and control of air pollution is a long-term and important work closely related to our lives. noa is willing to work with all sectors of society to jointly shoulder social and historical responsibilities and promote the progress of human civilization. we should constantly improve our awareness of environmental protection, take actions and work together to improve air quality and build an ecological country. air quality monitoring is still the top priority of environmental monitoring. noa , as a professional environmental monitoring institution, can provide comprehensive on-site monitoring and laboratory testing services for social entrusted environmental monitoring.

service content

1.service background

under the background of the continuous implementation of the air pollution prevention and control action plan proposed by the state and the victory of the blue sky defense war, the ministry of environmental protection has carried out major reforms in the system. from the formation of the independent acceptance system, the reform of the pollutant discharge permit system to the official implementation of the environmental protection tax, the environmental protection system is constantly deepening; in order to cooperate with the environmental protection system, a series of stricter testing methods have also been intensively introduced, which put forwardhigher requirements for the traditional testing technology. noa environment has been paying attention to the latest national laws and regulations, studying and analyzing policies and systems to provide the most accurate guidance for enterprises; at the same time, we are committed to the development of new methods to meet the increasingly stringent environmental testing requirements.

2.noa services

noa environmental division has a wide range of qualifications in the direction of atmosphere, providing customers with professional technical services such as on-site sampling and laboratory analysis.

test type	analysis parameters
ambient air and industrial waste gas	organic compound	vocs、svocs、nmhc、btx
	inorganic compound	metal elements,others
	others	tsp,pm

3.noa advantages

1. noa the price of laboratory is preferential, and the on-site sampling must be carried out within 3 days after the customer confirms;

2. noa environmental laboratory has cma certification and cans accreditation;

3. noa environmental laboratory is a professional inspection, identification, testing and certification organization;

4. noa environmental laboratory has a wide range of qualifications to meet various needs of customers.

4.classic cases

serial number	customer industry	noa services
1	a large dairy company	sewage station outlet inspection
2	a large chemical company/p>	annual rto outlet inspection

service process

q&a

what should i do if the sampling openings do not meet the method standards and specifications?

(if the sampling position does not meet the requirements of the method standards and specifications, the pollutant discharge enterprise can be asked to transform the flue. if it is difficult to meet the requirements due to the site and process conditions, the more suitable pipe section can be selected for sampling, but the distance between the sampling section and the elbow should be at least 1.5 times the diameter of the flue, and the number of measuring points and sampling frequency should be appropriately increased. the flow rate field of the sampling location can also be predicted. if the ratio of the maximum flow rate to the minimum flow rate of the monitoring section is greater than 3, the sampling point is encrypted at least 1 times, and holes can be opened in both horizontal and vertical directions for sampling.

what should be done if there is no obvious wind direction during unorganized exhaust gas monitoring, or if the wind direction changes during monitoring?

when there is no organized monitoring, it is suitable for monitoring when the wind speed is low, but there is no obvious wind direction or the wind direction changes more than 45°, it is not suitable for unorganized monitoring of the factory boundary, and appropriate weather conditions should be selected.

how to monitor gaseous pollutants emitted by stationary air pollution sources when there is no supporting standard analysis method?

under normal circumstances, when the state promulgates a certain air pollutant emission standard, there are national test and analysis methods to support it, but for various reasons, the analysis method standard lags behind. in order to compensate for this problem, some emission standards use the form of standard text appendix to indicate the analysis method. for example, in appendix a of "emission standard for cooking fume" (gb 18483-2001) : sampling method and analysis method for cooking fume; there are emission standards required to refer to the former state environmental protection bureau presided over the "air and waste gas monitoring and analysis methods" (published by china environmental science press) book. however, according to the spirit of circular letter [2009] 131, after the implementation of the new standard, the use of the methods in the publications listed in the preceding paragraph should be discontinued, and the corresponding new monitoring method standards should be implemented.

what kinds of air pollution?

air pollution can be divided into primary pollution, secondary pollution and compound pollution. the sources of primary pollution can be divided into natural sources and man-made sources. natural source pollutants refer to pollutants produced by nature, such as volcanic eruptions, plant releases and other pollutants. anthropogenic pollutants refer to the pollutants emitted by human production and living activities, including fuel combustion, industrial emissions, traffic emissions and agricultural activities. carbon monoxide (co), sulfur dioxide (so2), nitrogen oxides (nox), pm2.5, pm10, etc., are usually directly emitted by the source of pollution, known as primary pollutants; secondary pollutants are defined relative to primary pollutants. primary pollutants discharged into the environment, under the physical and chemical action or biological changes, or with other substances in the environment chemical reaction or photochemical reaction formed by the physical and chemical properties and primary pollutants of new pollutants, called secondary pollutants, also known as secondary pollutants. secondary pollutants are converted from volatile organic compounds, nitrogen oxides, sulfur dioxide, ammonia, etc. common secondary pollutants include sulfuric acid and sulfate, nitric acid and nitrate, ozone, acrolein, photochemical smog, etc. the combination of primary and secondary pollutants in the atmosphere leads to the formation of ozone pollution and particulate matter pollution. they have a long life and are transported from upwind to downwind by regional transmission. local pollution eventually leads to regional pollution, and even produces heavy pollution. the above kinds of pollution are superimposed on each other, and should be coupled with the polyphase reaction. the phenomenon of interaction between local and regional air pollution is called compound air pollution.

our advantage

authoritative qualification

noa has been approved by certification and accreditation administration of the people’s republic of china（cnca）(cnca-r-2002-051), and has obtained qualification of china inspection body and laboratory mandatory approval (cma),and has passed the multiple approvals of china national accreditation service for conformity assessment (cnas), international accreditation service (ias), united kingdom accreditation service (ukas), joint accreditation system of australia and new zealand (jas-anz). noa has been approved by state administration for market regulation of china, and has been recognized as inspection and testing institution of china's special equipment, as well as the qualification of china's national equipment supervision and engineering supervision. noa-dci is the notified body of the ce directive of the european commission. noa has been recognized by the international electrotechnical commission (iecq) by obtaining electronic component quality assessment system. it is also a national inspection and assessment notified body of import and export commodity in china.noa is a high-tech enterprise in shanghai.

improve performance, realize asset value appreciation, and service throughout the entire value chain

from pre-design to post-operation, noa has the ability to guarantee the whole life cycle of the business. noa, as an independent third-party inspection company, has a large number of domestic and international standards and specifications proficient in design, welding, non-destructive testing, painting, packaging and other fields the experienced team of professional engineers and inspection experts, with more than ten years of experience in the domestic market, is familiar with all aspects of the domestic industrial equipment supply chain, and can provide you with technical support services for the full life cycle of technical services in a timely manner, combining various products. inspection, certification, testing, consulting, and auditing services can provide you with one-stop all-round comprehensive services.

quality, efficiency and service

noa has formed a mature and solid operation system in the development of more than 20 years. we let technical experts who are familiar with market regulations and testing standards and have professional industry experience to carry out inspection, evaluation and design review work. while meeting the requirements of domestic and international standards, we ensure that customers can obtain satisfactory service results in the first time with accurate time-sensitive management methods, and ensure that customers can seize the opportunity in the market competition.

service area

noa inspection services currently cover europe, australia, russia, some middle east regions and most regions in china. noa can ensure the consistency and continuity of customer service in different regions, and eliminate the impact of unfamiliar environments on customer quality. the guarantees and the impact of project implementation enable customers to participate in different markets across the country or around the world with flawless quality.

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