People commute as a heavy sandstorm hits Beijing in May,2017. [Photo/VCG]

That environmentally unfriendly production activities continue even after several rounds of nationwide inspection warrants tougher supervision and enforcement on heavy polluters. The inspection teams dispatched by the ministry will reportedly conduct research independent of local environmental authorities to rule out hidden favoritism.

The bitter truth is that government supervision, however targeted and efficient, is not likely to cover all polluting enterprises and factories. So the task of reducing industrial air pollution and promoting green industry falls mainly on local manufacturers themselves. And their reluctance to do so will push that goal further off the table.

In all likelihood, many heavy polluters either do not have waste-processing facilities or refrain from using them because their owners are either unaware of or refuse to take environmental protection measures, because they focus on short-term profits. Missing in their crude calculation is the fact that polluted air, water and land will take a heavy toll on society, and them as well.

Decades of exponential growth in China's manufacturing has enriched a number of entrepreneurs, and they still believe the labor-intensive, polluting-prone development approach will keep bringing them profits. They should wake up to the fact that no one is immune to the consequences of environmental damage. That's why the enforcement against environmental pollution will gain more force and consistency.

Instead of evading the enforcers, those running pollution-prone units must take rectification measures for their own good. Data show every year about 780 million metric tons of industrial solid waste is underused, meaning that about 25 billion yuan ($3.9 billion) goes down the drain. Using clean energy and energy-saving technologies may be a better way out.