ducts with exits on roofs or vertical walls of buildings
located at a considerable height. Of course, the
justification for the applicability of the calculation
method in such cases is objective, but the final results
will not differ in a high degree of reliability. Thus, the
calculation method is considered applicable if the
emissions values compared by the calculated method
differ by an amount determined by the measurement
error used to justify the applicability of the
calculation method, including when obtaining the
initial information necessary for calculations; at the
same time, the difference in the values (indicators) of
emissions should be in the range of +/ 25% (On
approval of the Rules for the development and
approval of methods for calculating emissions of
harmful (polluting) substances into the atmospheric
air by stationary sources: Decree of the Government
of the Russian Federation No. 422 dated 16.05.2016).
At the same time, when implementing the calculation
method during the collection of information and its
processing, additional errors may appear dictated by
the human factor: starting from unintentional
distortion of information, ending with errors in
postprocessing of data, their incorrect interpretation.
Summarizing this, we can say with confidence that
the calculation method with such values of
normatively permissible and forced (random) errors
does not give an objective picture and is forced.
Thus, the instrumental method of conducting an
inventory of stationary objects remains the most
reliable in terms of obtaining objective data on
emissions of a particular object. This fact is
recognized by both domestic and foreign experts in
the field of environmental pollution monitoring.
Thus, the latter propose to use data on emissions of
harmful and polluting substances obtained from
orbiting satellites for the purpose of subsequent
modeling of their distribution. However, even in this
case, the data obtained with the help of satellites must
be constantly compared with the actual values of the
emission parameters obtained directly using
instrumental measurements. This is the only way it
becomes possible to calculate the correlation
coefficient, the use of which will allow to obtain a
model adjusted for reliability (Szymankiewicz,
2021).
3 RESULTS AND DISCUSSIONS
Taking into account the priority of the instrumental
method for determining the qualitative and
quantitative composition of emissions from the
examined APS, expert organizations authorized by
executive authorities to conduct an inventory use
group of experts equipped with mobile laboratories.
At the same time, the mobile laboratory performs, in
fact, the function of a vehicle for the delivery of
experts and instruments to the territory of a stationary
facility. Actions to directly measure the parameters
and composition of emissions are carried out by an
expert on foot, for which he needs to perform a certain
algorithm of actions, which begins with moving to the
location of the APS and ends with returning to the
starting point. The practice of inventory shows that
problems occur already at the initial stage.
So, when measuring the emission of harmful and
polluting substances, a number of devices are used
that are quite complex in configuration, while some
of them have autonomous power sources: bellows
aspirator, indicator tubes, digital differential pressure
gauge, Pitot tube, PA300M2 aspirator with a battery
power supply, a special thermometer, tubes for
conducting sampling, filter kits, etc. At the same time,
the technology of measurement requires their use in a
complex, which involves their transportation to the
location of the APS, deployment and use directly at
the work site in the vast majority of cases by one
operator. Thus, the entire instrument complex,
consisting of 3 or more different items with a packing
box (case) and a belt (handle) for transportation, with
a total weight of up to 1012 kilograms, is carried by
the expert. With this load, he needs to get to the
located, sometimes at a considerable distance from
the laboratory, and sometimes at a considerable
height, from the laboratory, overcoming numerous
flights of stairs or using a vertical, sometimes without
a restrictive fence, ladder.
Arriving at the place of measurements, the expert
needs to deploy the instrument complex, connect it to
the power supply and measure the emission
parameters. After that, write down the parameters in
the logbook, put the instrument complex in the case
and return to the mobile laboratory.
Successful and safe execution of the entire
algorithm of actions in the case of work performed in
conditions of difficult access to APS will be ensured
by the fulfillment of a number of requirements and
conditions by all subjects of the inventory: the expert
organization, the management of the object to be
inventoried, the expert himself.
So, before the expert organization, in addition to
training experts with professional knowledge in the
field of measurements and skills of working with
equipment, there is a need to provide experts with
additional equipment. First of all, with a compact
universal container, which, accommodating all the
devices and equipment necessary for the work, is